Sony SRS-BTV25 - Manuel

SRS-BTV25 [EU8] 4-298-825 -13(1)
Wireless Speaker System
4-298-825-13(1)
SRS-BTV25
©2011 Sony Corporation Printed in China
Low sound level
 Turn up the volume of the source device as high as
possible to the extent that sound is not distorted. For
details on volume adjustment, refer to the operating
instructions supplied with the device.
 Turn up the volume of the system.
Distorted sound
 Turn down the volume of the source device to the point
where the sound is no longer distorted. For details on
volume adjustment, refer to the operating instructions
supplied with the device.
 If the source device has a bass boosts function, turn it
off.
 Turn down the volume of the system.
There is hum or noise in the speaker output.
 Make sure all the connections have been correctly made.
 Make sure none of the audio devices are positioned too
close to the TV set.
The brightness of the POWER indicator (green) is
unstable.
 The brightness of the POWER indicator (green) may
become unstable when the volume is turned up. This is
not malfunction.
When using the Bluetooth connection
No sound
 Ensure that this system is not too far from the Bluetooth
stereo audio source device, and that this system is not
receiving interference from a wireless LAN, another 2.4
GHz wireless device, or a microwave oven.
 Check that the Bluetooth connection is made properly
between this system and the Bluetooth stereo audio
source device.
 Pair this system and the Bluetooth stereo audio source
device again.
 If you are pairing this system and a personal computer,
make sure the audio output setting of the computer is
set for a Bluetooth device.
Sound skips or the communication is interrupted.
 If a device that generates electromagnetic radiation,
such as a wireless LAN, other Bluetooth device(s), or a
microwave oven is nearby, move away from such
sources.
 Remove any obstacle between this system and other
Bluetooth device, or move away from the obstacle.
 Locate this system and other Bluetooth device(s) as near
as possible to each other.
 Re-position this system.
 Re-position the other Bluetooth device.
Pairing is not possible.
 Bring this system and the Bluetooth device closer
together.
 Make sure pairing mode is activated.
USB charging problem
The device cannot be charged.
 Make sure the AC adaptor is connected to a wall outlet
(mains).
 Refer to the operating instructions supplied with the
device for the charging procedure.
Specifications
Speaker section
Speaker system
Woofer: 56 mm, magnetically shielded
Tweeter: 20 mm
Enclosure type
Bass reflex
Impedance
Woofer: 6 Ω
Tweeter: 6 Ω
Amplifier section
Reference output power
13 W (10% T.H.D., 1 kHz, 6 Ω)
Input Stereo mini jack × 1
Input impedance
4.7 kΩ (at 1 kHz)
Bluetooth
Communication System
Bluetooth Specification version 2.1 + EDR
(Enhanced Data Rate)
Output Bluetooth Specification Power Class 2
Maximum communication range
Line of sight approx. 10 m* 1
Frequency band
2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Modulation method
FHSS
Compatible Bluetooth Profiles* 2
A2DP (Advanced Audio Distribution Profile)
AVRCP 1.3 (Audio Video Remote Control
Profile)
Supported Codec* 3
SBC* 4
Supported content protection method
SCMS-T
Transmission range (A2DP)
20 Hz - 20,000 Hz (Sampling frequency 44.1
kHz)
*1 The actual range will vary depending on factors such
as obstacles between devices, magnetic fields around a
microwave oven, static electricity, reception sensitivity,
aerial’s performance, operating system, software
application, etc.
*2 Bluetooth standard profiles indicate the purpose of
Bluetooth communication between devices.
*3 Codec: Audio signal compression and conversion
format
*4 Subband Codec
USB
USB jack
Type A (for charging the battery of a connected
device) (5 V, 500 mA)
General
Power DC 13 V
Rated power consumption
12 W
Operating temperature
5 ºC - 35 ºC
Power voltage
100 V - 240 V AC
Dimensions (w/h/d)
Approximately 145 mm × 145 mm × 145 mm
Mass Approximately 500 g
English
Before operating the system, please read this guide thoroughly
and retain it for future reference.
WARNING
To reduce the risk of fire or electric shock, do not expose
this apparatus to rain or moisture.
To reduce the risk of electrical shock, do not open the
cabinet. Refer servicing to qualified personnel only.
Do not install the appliance in a confined space, such as a
bookcase or built-in cabinet.
To reduce the risk of fire, do not cover the ventilation
opening of the apparatus with newspapers, tablecloths,
curtains, etc. Do not place the naked flame sources such as
lighted candles on the apparatus.
To reduce the risk of fire or electric shock, do not expose
this apparatus to dripping or splashing, and do not place
objects filled with liquids, such as vases, on the apparatus.
Do not install the AC adaptor in a confined space, such as
a bookcase or built-in cabinet.
As the main plug is used to disconnect the unit from the
mains, connect the unit to an easily accessible AC outlet.
Should you notice an abnormality in the unit, disconnect
the main plug from AC outlet immediately.
The system is not disconnected from the mains as long as
it is connected to the AC outlet, even if the system itself
has been turned off.
The nameplate is located on the bottom exterior of the
system.
Hereby, Sony Corp., declares that this equipment is in
compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.
For details, please access the following URL:
http://www.compliance.sony.de/
Norway: Use of this radio equipment is not allowed in the
geographical area within a radius of 20 km from the centre
of Ny-Ålesund, Svalbard.
Italy: Use of the RLAN network is governed:
– with respect to private use, by the Legislative Decree of
1.8.2003, no. 259 (“Code of Electronic Communications”).
In particular Article 104 indicates when the prior
obtainment of a general authorization is required and Art.
105 indicates when free use is permitted;
– with respect to the supply to the public of the RLAN access
to telecom networks and services, by the Ministerial Decree
28.5.2003, as amended, and Art. 25 (general authorization
for electronic communications networks and services) of
the Code of electronic communications
On Copyrights and Licenses
The Bluetooth
®
word mark and logos are owned by the
Bluetooth SIG, Inc. and any use of such marks by Sony
Corporation is under license.
Other trademarks and trade names are those of their
respective owners.
Notice for customers: the following information
is only applicable to equipment sold in countries
applying EU directives
The manufacturer of this product is Sony Corporation, 1-
7-1 Konan Minato-ku Tokyo, 108-0075 Japan. The
Authorized Representative for EMC and product safety is
Sony Deutschland GmbH, Hedelfinger Strasse 61, 70327
Stuttgart, Germany. For any service or guarantee matters
please refer to the addresses given in separate service or
guarantee documents.
Disposal of Old Electrical &
Electronic Equipment (Applicable in
the European Union and other
European countries with separate
collection systems)
This symbol on the product or on its packaging indicates
that this product shall not be treated as household waste.
Instead it shall be handed over to the applicable collection
point for the recycling of electrical and electronic
equipment. By ensuring this product is disposed of
correctly, you will help prevent potential negative
consequences for the environment and human health,
which could otherwise be caused by inappropriate waste
handling of this product. The recycling of materials will
help to conserve natural resources. For more detailed
information about recycling of this product, please contact
your local Civic Office, your household waste disposal
service or the shop where you purchased the product.
Precautions
Notes when using with a mobile phone
 You cannot use this unit to talk over the telephone, even
if the Bluetooth connection between this unit and a
mobile phone is made.
 For details on operation of your mobile phone when
receiving a telephone call while transmitting the sound
using the Bluetooth connection, refer to the operating
instructions supplied with the mobile phone.
On safety
The nameplate indicating Sony trademark, model number
and electrical rating is located on the bottom exterior of
this unit.
 Before operating the system, be sure that the operating
voltage of the system is identical with that of your local
power supply.
Where purchased Operating voltage
All countries/regions 100 – 240 V AC, 50/60 Hz
 Use only the supplied AC adaptor.
On placement
 Do not set the speaker in an inclined position.
 Do not leave the system in a location near heat sources,
or in a place subject to direct sunlight, excessive dust,
moisture, rain or mechanical shock.
On operation
 Do not insert any small objects, etc., into the jacks or
ventilation hole on the rear of the system. The system
may short out or malfunction.
 Do not open the cabinet. Refer servicing to qualified
personnel only.
 Should any solid object or liquid fall into the system,
have the system checked by qualified personnel before
operating it any further.
 Although this system is magnetically shielded, do not
leave recorded tapes, watches, personal credit cards, or
floppy disks with magnetic coding in front of the system
for an extended period of time.
On cleaning
 Do not use alcohol, benzine, or thinner to clean the
cabinet.
If the TV picture or monitor display is
magnetically distorted
 Although this system is magnetically shielded, there
may be cases that the picture on some TV sets/personal
computer sets may become magnetically distorted. In
such a case, turn off the power of the TV set/personal
computer set once, and after 15 to 30 minutes turn it on
again.
For the personal computer set, take the appropriate
measures such as data storage before turning it off.
When there seems to be no improvement, locate the
system further away from the TV set/personal computer
set.
Furthermore, be sure not to place objects in which
magnets are attached or used near the TV set/personal
computer set, such as audio racks, TV stands, toys etc.
These may cause magnetic distortion to the picture due
to their interaction with the system.
Others
 If you have any questions or problems concerning this
unit that are not covered in this manual, please consult
your nearest Sony dealer.
 Should any problem persist, consult your nearest Sony
dealer.
Troubleshooting
If you run into any problems using this system, use the
following checklist. Should any problem persist, consult
your nearest Sony dealer.
Common Problems
No sound
 Check that both this system and the source device are
turned on.
 Turn up the volume of the system.
 Turn up the volume of the source device as high as
possible to the extent that sound is not distorted. For
details on volume adjustment, refer to the operating
instructions supplied with the device.
 Make sure all the connections have been correctly made.
 Make sure the source device is playing.
Firmly connect the supplied AC adaptor to the DC IN 13V
jack on the back of the system, and plug the AC power
cord (mains lead) into a wall outlet (mains).
to wall outlet
(mains)
to DC IN 13V jack
Rear of the system
AC adaptor (supplied)
Notes on the AC adaptor and AC power cord
(mains lead)
 When connecting or disconnecting the AC power cord
(mains lead), turn off the system beforehand.
Otherwise, it may cause malfunction.
 Use only the supplied AC adaptor. To avoid damaging
the system, do not use any other AC adaptor.
Polarity of the plug
 Plug the AC power cord (mains lead) into a nearby wall
outlet (mains). In the case of a problem, unplug it from
the wall outlet (mains) immediately.
 Do not place the AC adaptor on a bookshelf or in a
confined place, such as a cabinet.
 To avoid fire or electric shock, do not use the AC
adaptor in a place near liquid or subject to moisture.
Furthermore, do not place liquid-filled vessels, such as
vases, etc., on the AC adaptor.
 The supplied AC adaptor and AC power cord (mains
lead) are only for this system. Do not use them with any
other device.
 In system protect mode, all indicators flash, and the
system buttons will not work. To exit this mode,
disconnect the AC power cord (mains lead) from the
wall outlet (mains), then connect again. Make sure all
indicators are off, and turn on the system. If the system
detects a problem (indicators flashing repeatedly, no
sound from connected device, etc.), there may be a
malfunction. In this case, immediately disconnect the
AC power cord (mains lead) and seek repair.
To turn the system on/off
Press /.
To charge the device
Connect the AC adaptor to a wall outlet (mains), and
connect the device to the system using the USB cable
supplied with the device.
Charging begins automatically, whether the system is
turned on or off. The charging status is displayed on the
device. For details, refer to the operating instructions
supplied with the device.
Side of the system
to USB jack
USB cable supplied with the device
USB rechargeable
devices such as mobile
phone, “WALKMAN,” etc.
Using the Bluetooth
Connection
By using the Bluetooth connection, you can listen to the
sound from a Bluetooth device with the system wirelessly.
Note
 For details on how to operate the device to be
connected, refer to the operating instructions supplied
with the device.
On pairing
Bluetooth devices need to be “paired” with each other
beforehand.
Once Bluetooth devices are paired, there is no need for
pairing again, except in the following cases:
 Pairing information is deleted after repair, etc.
 The system is paired with 10 or more devices.
The system can be paired with up to 9 Bluetooth stereo
audio source devices. If a new device is paired after 9
devices have been paired, the device whose latest
connection time is the oldest among the 9 paired
devices is replaced by the new one.
 The system is initialised.
All pairing information is deleted.
Pairing with a source device
Check the following before operating the system.
 The system is connected to a power source.
 The operating instructions supplied with the device are
kept at hand.
1 Press the / button to turn on the system.
The POWER indicator (green) lights up.
2
Press and hold the BLUETOOTH PAIRING
button for any more than 2 seconds.
When the (BLUETOOTH) indicator (blue) starts
flashing quickly, release the button. The system enters
pairing mode.
Note
 Pairing mode is cancelled and the system is turned
off after about 5 minutes. If the pairing mode is
cancelled while performing this procedure, start
over from step 2.
3
Perform the pairing procedure on the
Bluetooth device to detect the system.
A list of detected devices appears on the display of the
Bluetooth stereo audio source device.
This system is displayed as “SRS-BTV25.”
If “SRS-BTV25” is not displayed, repeat from step 2.
Tip
 If pairing information has not been memorised, the
system enters pairing mode automatically when the
BLUETOOTH PAIRING button is pressed. There is
no need to hold the BLUETOOTH PAIRING
button for any more than 2 seconds.
Notes
 When pairing, be sure to place both the Bluetooth
devices within 1 m of each other.
 Some devices cannot display a list of detected
devices.
4
Select “SRS-BTV25” shown in the display of
the Bluetooth device.
5
If Passcode* input is required on the display
of the Bluetooth device, input “0000.”
* Passcode may be called “Passkey,” “PIN code,” “PIN
number,” or “Password.”
6
Start the Bluetooth connection from the
Bluetooth device.
The system memorises the device as the last connected
device. Some Bluetooth devices may connect with the
system automatically when pairing is complete.
Tip
 To pair with other Bluetooth devices, repeat steps 2
to 5 for each device.
Note
 Passcode of the system is fixed as “0000.” The system
cannot be paired with a Bluetooth device whose
Passcode is not “0000.”
Listening to the system
The system supports SCMS-T content protection. You can
enjoy music, etc., from a device such as a mobile phone or
portable TV that supports SCMS-T content protection.
Check the following before operating the system.
 The Bluetooth device’s Bluetooth function is on.
 Pairing of the system and the Bluetooth device is
complete.
1 Press the / button to turn on the system.
The POWER indicator (green) lights up.
2
Press the BLUETOOTH PAIRING button.
Note
 If the (BLUETOOTH) indicator (blue) is
activated, this step is not required.
3 Start the Bluetooth connection from the
Bluetooth device.
4
Start playback on the Bluetooth device.
Note
 If the source device has a bass boost function or
equaliser function, turn them off. If these functions
are on, sound may be distorted.
5
Adjust the volume.
Set the volume of the Bluetooth device to a moderate
level, and press the VOL –/+ buttons on the system.
Tips
 You can adjust the volume of the system via a
Bluetooth device supporting AVRCP (Audio/Visual
Remote Control Profile) VOLUME UP/DOWN. For
details, refer to the operating instructions supplied
with the device.
 The volume of the system may not be controllable,
depending on the device.
Note
 The POWER indicator (green) flashes three times
when the volume is set to minimum or maximum.
Notes
 In the following cases, you need to make the Bluetooth
connection again.
– The power of the system does not turn on.
– The power of the Bluetooth device does not turn on,
or the Bluetooth function is off.
– The Bluetooth connection is not made.
 When the sound of a Bluetooth device is being
reproduced using the Bluetooth connection (when both
the POWER indicator (green) and (BLUETOOTH)
indicator (blue) light up), the sound from a device
connected to the AUDIO IN jack cannot be heard. Press
the AUDIO IN button to listen to the sound from a
device connected to the AUDIO IN jack.
 If more than one device paired with the system is being
played back, sound will be heard from just one of those
devices.
To finish listening
Terminate the Bluetooth connection by any of the
operations below.
 Operate the Bluetooth device to terminate the
connection. For details, refer to the operating
instructions supplied with the device.
 Turn off the Bluetooth device.
 Turn off the system.
Indications of the Bluetooth
function
Status (BLUETOOTH)
indicator (blue)
Pairing with a device Flashes quickly
Searching for a device Flashes
Connecting to a device Lights up
Activating the Bluetooth
standby function Flashes slowly*
Deactivating the Bluetooth
standby function Off
Receiving audio signal from
the AUDIO IN jack. Off
* Even when the Bluetooth standby function is activated,
the indicator will be off if there is no pairing
information.
To use the Bluetooth standby
function
By using the Bluetooth standby function, you can make the
system turn off temporarily and wait for the Bluetooth
connection.
1 Hold the BLUETOOTH PAIRING button
and press the / button for any more than 2
seconds while the system is turned on.
The system turns off and the (BLUETOOTH)
indicator (blue) flashes.
If you start the Bluetooth connection, the system turns
on automatically and starts communication.
Tip
 When waiting for the Bluetooth connection, you can
reduce power consumption by using the Bluetooth
standby function, rather than leaving the system turned
on.
Note
 To disable the Bluetooth standby function, perform step
1 again. (The (BLUETOOTH) indicator (blue) and
the system will turn off.)
Using by a wired connection
You can listen to the sound from a device connected to the
AUDIO IN jack.
Note
 For details on how to operate the device to be
connected, refer to the operating instructions supplied
with the device.
Hooking up the system
RK-G136 connecting
cord (optional)
Portable audio device,
computer, etc.
Rear of the system
To headphone
jack (stereo mini
jack)
to AUDIO IN jack
1
Connect the device to the system.
To connect to a stereo phone-type headphone
jack
Use the optional connecting cord RK-G136 and plug
adaptor PC-234S, or optional connecting cords RK-G136
and RK-G138.*
* The above optional accessories may not be available in
some areas.
Listening to the system
1 Press the / button to turn on the system.
The POWER indicator (green) lights up.
2
Press the AUDIO IN button.
Note
 If the AUDIO IN indicator (amber) is activated, this
step is not required.
3
Start playback on the source device.
4
Adjust the volume.
Set the volume of the source device to a moderate
level, and press the VOL –/+ buttons on the system.
Note
 The POWER indicator (green) flashes three times
when the volume is set to minimum or maximum.
5 Press the / button to turn off the system
after use.
The POWER indicator (green) turns off.
Operations
Function of parts
/ button
Turns the system on/off. The POWER indicator (green)
lights up when the system is turned on.
VOL (volume) −/+ button
Adjusts the volume.
The POWER indicator (green) flashes three times when
the volume is set to minimum or maximum.
BOOST button
Press to obtain a heavy bass sound effect. The BOOST
indicator (amber) lights up. To disable the effect, press the
button again (the indicator turns off).
The default setting of the function is on. Turn it off if
desired.
BLUETOOTH PAIRING button
Press to use the Bluetooth connection or pair with a
Bluetooth device.
Depending on the communication status, the
(BLUETOOTH) indicator (blue) lights up or flashes. For
details about the flashing patterns of the
(BLUETOOTH) indicator (blue), see “Indications of the
Bluetooth function” in these operating instructions.
AUDIO IN button
Press to receive audio signal from the AUDIO IN jack. The
AUDIO IN indicator (amber) lights up.
AUDIO IN jack
Connects to the headphone jack of a computer, portable
audio device, etc.
DC IN 13V jack
Connects the supplied AC adaptor.
USB jack
Charges a device connected to the system by the USB
cable. This jack is used for charging the connected device
only. Audio signal, etc., cannot be sent via this jack.
Features
This product is a wireless speaker system that uses
Bluetooth wireless technology.
 Enjoy music wirelessly from Bluetooth stereo enabled
music players, mobile phones and PC’s.*
 Bluetooth Version 2.1 + EDR (Enhanced Data Rate) for
higher quality audio with less interference.
 Powerful sound with 13 W amplifiers and MegaBass.
 Includes one analogue input for direct connection from
a music player or other audio device.
 Magnetically-shielded design for use near your TV or
monitor.
 USB-charge compliant devices, e.g., mobile phones,
“WALKMAN,” etc., can be charged via the USB jack of
this product.
Enjoying listening to sound wirelessly by
Bluetooth wireless technology
You can enjoy listening to sound wirelessly by connecting
Bluetooth supported devices (such as a mobile phone,
digital music player, digital music player connected to a
Bluetooth transmitter, or personal computer)* to the
system. The system receives stereo audio signals from the
source device.
Bluetooth device.
* Bluetooth devices to be connected with the system are
required to support A2DP (Advanced Audio
Distribution Profile).
Power source
Note on the power management system
After playback has finished, if no operation is performed
for 20 minutes, the system will automatically turn off.
Notes
 If the speaker is connected to a device with a built-in
radio or tuner, radio stations may not be received, or
sensitivity may be reduced significantly.
 If the source device has a bass boost function or
equaliser function, turn them off. If these functions are
on, sound may be distorted.
 To switch the connection to the Bluetooth connection,
press the BLUETOOTH PAIRING button.
Initialising the System
You can reset the system to its default and delete all
pairing information.
1
Hold the BOOST button and press the
BLUETOOTH PAIRING button for any more
than 5 seconds while the system is turned on.
The POWER indicator (green) flashes for 2 seconds.
What is Bluetooth wireless
technology?
Bluetooth wireless technology is a short-range wireless
technology that enables wireless data communication
between digital devices, such as a computer and digital
camera. Bluetooth wireless technology operates within a
range of about 10 metres.
Connecting two devices as necessary is common, but
some devices can be connected to multiple devices at the
same time.
You do not need to use a cable for connection, nor is it
necessary for the devices to face one another, such is the
case with infrared technology. For example, you can use
such a device in a bag or pocket.
Bluetooth standard is an international standard supported
by thousands of companies all over the world, and
employed by various companies worldwide.
Communication System and Compatible
Bluetooth Profiles of the system
Profile is standardisation of the function for each
Bluetooth device specification. The system supports the
following Bluetooth version and profiles:
Communication System:
Bluetooth Specification version 2.1 + EDR*
Compatible Bluetooth Profiles:
– A2DP (Advanced Audio Distribution Profile):
Transmitting or receiving audio content of high-
quality.
– AVRCP 1.3 (Audio Video Remote Control Profile):
Controlling the sound volume.
* Enhanced Data Rate
Maximum communication range
Use Bluetooth devices within 10 m (line of sight) of the
system.
Maximum communication range may shorten under the
following conditions.
– There is an obstacle such as a person, metal, or wall
between the system and Bluetooth device.
– A wireless LAN device is in use near the system.
– A microwave oven is in use near the system.
– A device that generates electromagnetic radiation is
in use near the system.
Interference from other devices
Because Bluetooth devices and wireless LAN
(IEEE802.11b/g) use the same frequency, microwave
interference may occur and resulting in communication
speed deterioration, noise, or invalid connection if the
system is used near a wireless LAN device. In such a case,
perform the following.
– Use the system at least 10 m away from the wireless
LAN device.
– If the system is used within 10 m of a wireless LAN
device, turn off the wireless LAN device.
Interference to other devices
Microwaves emitting from a Bluetooth device may affect
the operation of electronic medical devices. Turn off the
system and other Bluetooth devices in the following
locations, as it may cause an accident.
– where inflammable gas is present, in a hospital, train,
airplane, or a gas station
– near automatic doors or a fire alarm
Notes
 To be able to use the Bluetooth function, the Bluetooth
device to be connected requires the same profile as the
system’s.
Note also that even if the same profile exists, devices
may vary in function depending on their specifications.
 Due to the characteristic of Bluetooth wireless
technology, the sound played on the system is slightly
delayed from the sound played on the Bluetooth device
during talking on the telephone or listening to the
music.
 This system supports security capabilities that comply
with the Bluetooth standard to provide a secure
connection when the Bluetooth wireless technology is
used, but security may not be enough depending on the
setting. Be careful when communicating using Bluetooth
wireless technology.
 We do not take any responsibility for the leakage of
information during Bluetooth communication.
 A device featuring the Bluetooth function is required to
conform to the Bluetooth standard specified by
Bluetooth SIG, and be authenticated. Even if the
connected device conforms to the above mentioned
Bluetooth standard, some devices may not be connected
or work correctly, depending on the features or
specifications of the device.
 Noise or sound skips may occur depending on the
Bluetooth device connected with the system, the
communication environment or the usage environment.
USB jack *
Top of the system
VOL −/+ button
(BLUETOOTH) indicator
AUDIO IN indicator
Side of the system
BOOST
button
Parts and controls
BLUETOOTH
PAIRING button
AUDIO IN
button
Rear of the system
/ button
POWER indicator
BOOST indicator
The VOL + button has a
tactile dot.
* For charging only
AUDIO IN
jack
DC IN 13V
jack
Reference Guide
Guide de référence (au verso)
Supplied accessories
AC adaptor (AC-E1320D1) (1)
AC power cord (1)
Reference Guide (this document) (1)
Design and specifications are subject to change without
notice.