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ヘッドセット Avantalk hm100のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Avantalk hm100 17 ページ。 Universal bluetooth motorcycle kit (headset + interphone)

4. Charging
The USB port is only for charging. User can charge the unit by using a USB cable
via a PC.
1) For first time use, please charge your HM100 until the battery reaches its full capacity. This
usually takes about 2 hours
2) Afterwards, each charge cycle may take up to 2 hours.
3) LED will indicate red in charging and off when charging is complete.