Features Bluetooth version: EDRV4.2 Voice: Support Support Protocol: HFP HSP A2DP AVRCP Function: answering calls, hanging up call registration, hanging up, listening to music pause/play, voice report, tail number redial, caller number, smart voice prompt, power display, noise reduction Battery capacity: left and right ears: 55mAh, base 300mAh Charging power supply: AC input 110-240V DC output 5V Transmission power: Class2 Wireless frequency: 2.402-2.480GHz Call duration: 2-3 hours or so Music playback: 2-3 hours or so Charging time: 60 minutes Noise Reduction: DSP Intelligent Noise Cancellation Technology Operating range: 15 meters effective distance Charging interface: Micro-USB
Charging instructions: Headphone charging indicator: when the headphone is charging, the red light is on. When the red light is off, it is full charged.
