Specifications:
1, Bluetooth Version: V4.0, Chipset: CSR
2, Support Profile: HSP V1.2,HFP V1.6,A2DP  V1.2,AVRCP V1.4
3, Transmission distance: 10M
4, Frequency Response: 20Hz-20KHZ
5, Build-in speaker mic;
6.   Rechargeable lithium battery: 200mAh
Features:
1. Allow 2 Bluetooth devices connected simultaneously
2. Support APTX,AAC nondestructive sound transmission standard Bluetooth 4.0 Headset ;
3. Can enjoy music when you are doing sport;
4. HIFI timbre and HIFI Stereo sound quality;
5. Compatible with most of bluetooth enable audio devices,including computer/laptop and Bluetooth enabled mobile phone,MP3/MP4,IPOD,PAD,etc.