Cheap Wireless Headphones High Quality Metal Neckband Sports Earphone
- Version: V5.0
- Use Distance:10m
- Frequency Range:2.4-2.48GHz
- Frequency Response:20-20kHz
- Signal noise ratio:87db±3db
- Impedance:2*16Ω
- Speaker Size:10mm
- Battery Capacity:80mAh
- Playing time:about 6H
- Charging time:3H
- Standby Time:360H