Headset — iVoice B300

The iVoice B300 Bluetooth headset
1. Bluetooth version: V4.1
2. Battery: 1,050 mAh
3. Talking Time: 70 hours
4. Music playing time: 65 hours (ANC off)/26 hours (ANC on)
5. Standby Time: 210 days
6. Charging Voltage: 5V
7. Charging Time: about 3 -4 hours
8. Speaker: φ40mm 32Ω 30mW
9. Wireless Range: 20m
10. RF frequency: 2.402-2.480 GHz
11. Support Siri voice system
12. Previous song, next song
13. Support Multi-point connecting with 2 devices
14. Built-in Microphone, answer/ hang-up calls, enjoy music, volume control, redial the latest number
15. Working Temperature: -10℃—60℃
16. Color: Black