1. Headset Wireless specification: Wireless V4.1, ISSC, support protocol headset hands-free A2DP Avrcp.
2. Transmission range 10 meters. Transmission frequency 2.4GHz.
3. Charging voltage DC5V. Charging time is about 2 hours.
4. Battery capacity: 40mAh. Product size: L28*W14.5*H13mm.
5. Talk time 4.5 hours, 4.5 hours music time. Standby time 90 hours. Product net weight: 4g.
6. Battery level display supports Apple iPhone and some Android phones.
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