-With mini USB port and rechargeable built-in lithium battery.
Bluetooth V4.1/V3.0/V1.1/V1.2 compliant,2.4GHZ-2.480MHZ,
Longest wireless range:
– High-sensitivity RF chip transmission, it is easy to connect with other Bluetooth equipped devices.
– With mini USB port and rechargeable built-in lithium battery.
– Hi-Fi earphones built directly on to the frame, and can be adjusted 270 degree for comfortable fit.
– It can works for all bluetooth mobile phones, you can enjoy hands-free talk with your friends.