Product Features: 

1. Adopting bluetooth 4.0 project and supporting Micro USB charging. 
2. Supports all bluetooth devices and phones. 
3. It is capable of connecting with two phones simultaneously. 
4. Adopting A2DP which supports music play and Chinese and English audio indication. And English is pure American English. 
5. Volume - button for volume adjustment. 
6. With audio control and audio indication functions. 
7. Adopting CSR chip and bluetooth 4.0 for super low power consumption and super long standby. 
8. Answering and hanging up the call, rejecting a phone call, last number redial. 
9. YES for answering, NO for hanging up. 

Product Parameter: 

1. Product model: V9 
2. Battery capacity: 100mAh 
3. Product weight: about 14g 
4. Specifications of microphone: about 40 * 25 mm/ 1.57 * 0.98 inches 
5. Product size: about 40 * 21 * 30 mm/ 1.57 * 0.83 * 1.18 inches 
6. Bluetooth version: V4.0, being compatible with V3.0,V2.1,V1.1 
7. Chip group: CSR 
8. Transmission power: Class2 
9. Transmission rate: 2.4GHz 
10. Transmission distance: Over 10 meters 
11. Call duration: 4 - 6 hours 
12. Standby time: 120 - 150 hours 
13. Supported file formats: A2DP, AVRCP, HSP and HFP 

Packing List: 

1 * USB 
1 * User Manual