1.Bluetooth version: V4.0
2.Bluetooth distance：10M
3.Style: stereo neckband
4.Impedence:32Ω
5.Frequency response range:20Hz-20KHz
5.Sensitivity:110±3dB
6.Music time: ≥ 10H
7.Charge time: ≤2H
8.Free talk time: ≥ 10H
9.Standby time： 10days
10.Color:white,black,yellow
11.Connectors: USB
12.Special Feature: Portable, Wireless
13.Material: ABS shell
14.Comply with ：CE and FCC
15.Vocalism Principle:Dynamic
16.Point Of Selling：HQ quality,light than light,environmental material,CVC noise reduction,CSR chip
