1. Latest Wireless V4.0, high fidelity sound quality.
2. Enhanced noise reduction, good choice for listening music, watching movie, talking on the phone, etc.
3. Support multi-point connection, can connect two devices at the same time.
4. Allow you to power on/off, answer/hang up/reject/redial call, pause and play, vol+/-, next/previous track.
5. Voice answer: say "Yes" answer the call, "No" refuse the call.
6. Voice prompt, voice incoming phone number.
Transmission range: 10m
Battery: 3.7V / 60mAH
Talking time: About 4 hours
Listen music: About 3 hours
Standby time: 120 hours
Charge time: About 1 hour