Roborock E4 CE - Manuel (Page 6)

off before storing it in a cool, dry place.
• Charge it at least every three months to avoid over discharging the battery.
• To satisfy RF exposure requirements, a separation distance of 20 cm or more
should be maintained between this device and persons during device operation.
• To ensure compliance, operations at closer than this distance is not
recommended. The antenna used for this transmitter must not be co-located in
conjunction with any other antenna or transmitter.
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