A dedicated Li-ion battery, which is built into the lens barrel, powers the zoom and autofocus.
镜头内部装有专用的锂电池，为镜头变焦和自动对焦提供电力。
2
Clarification: USB 2.0 adds in the Battery charging specification 1.0, which allows for dedicated charging and other power goodness. This particular connector is the type a variety.
阐明：usb 2.0加入了在电池充电规格1.0，这个规格允许专用充电和其他电源。
3
Dedicated sound in the speaker for low battery, switch on, switch off, pairing, volume adjustment, voice activation, reconnection request, waiting call….