New Car Wireless Bluetooth Aux Audio Receiver Hand Free

. bluetooth v4.1 + edr, the farthest transmission distance of 10m 2. support bluetooth handsfree call function 3. support bluetooth a2dp 4. frequency: 2.4ghz 5. 3.5mm stereo input jack 6. sleep mode, energy saving 7. power: use a mini usb cable to charge 8. working time: can work for 3-5 hours packing accessories: 1. bluetooth music receiver 2. usb cable 3.3.5 metal head 4. manual