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スポーツ&アウトドア Artone U&I-03のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Artone U&I-03 18 ページ。

Battery and Charging Note
When battery is running out of power the LoopSet beeps and
the red LED flashes every 2 seconds.
Note: if charging the Bluetooth LoopSet when it is on, the unit
will automatically turn off. The BT LoopSet can be turned on
again for usage while charging.
-Use only batteries and chargers approved by the manufacturer
to use with this particular product. Any use of other types may
be dangerous and will invalidate the warranty.
The product has an internal non-removal rechargeable battery.
Do not attempt to remove the battery from the device as it may
cause damage.
To make sure that the battery is fully charged please keep
charging the Bluetooth LoopSet for 30 minutes after the LED
indicator has turned off.
(The Charging LED indicator may not turn on red when
charging if the unit was not used for a long period of time.)
Note – the stand by and talking time depends on the
environmental conditions and the mobile phone (or other
Bluetooth transmitters)
Note – when using the charging cord, do not pull the cable
when disconnecting it, it may cause damage to the cable.
When disconnecting, please grab the connector.