Sony TMR-BT8iP Mode D'emploi page 9

Notes
 To listen to music from the headphone jack of the iPod, disconnect this unit from
the iPod.
 While this unit is turned on, it consumes power from the iPod. We recommend
disconnect this unit from iPod when not using the Bluetooth function.
 If the headphone is connected to the iPod while the iPod is playing back, it
consumes power from iPod.
 If you turn off this unit while the iPod is playing back, iPod will power off.
 It is not recommended to turn off iPod as the linkage will lost between this unit
and the Bluetooth receiving device.
 There is no need to charge this unit as it will receive power from the connected
iPod. It is recommended to check the iPod's remaining battery before using.

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