... time,160 hours standy time,1-2 hours chargi Bluetooth Handsfree BT-S9 has following features: *Fashionable design, valued type ... convenient for sports *Suitable for mobile phones, PC, and iPod *Handsfree speaking by pairing with mobile phone *Enjoy music of iPod ... music *Volume adjustment *Bluetooth version: 1.2/V2.0, wireless transmitter standard of class II *Chipset: CS2 *Frequency coverage: 2.402 ...