K3 K3-Joule, User Manual

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2. Charging for headset
The headset comes with a built-in rechargeable battery, it is recommended to
charge the battery completely prior to initial use. When the headset is low
power, the headset emits prompt tones every 2 minutes and the red & blue
LED flashes alternatively. Please recharge the battery of the headset.
Charge utilizing the USB cable
1. Turn on the cover of charging jack, and plug the USB charging cable
2. Plug another side of cable to the USB port of PC
Red light on: Charging
Red light off: Charge is complete. It will take approximately 2
hours to complete full charge.
Remarks:
1)
The battery is recyclable.
2) Batteries (battery pack or batteries installed) shall not be exposed to
excessive heat place, such as sunshine, fire or the like.
2