Descrption:1. Furthest distance 10 m2. Support bluetooth hands-free calls3. Support bluetooth A2DP stereo4. Frequency: 2.4 GHz5. Passed CE, FCC, BQB certification6. 3.5 mm stereo input pin7. Sleep mode, energy saving8. Power: use the mini USB cable9. Work time: up to 8 hoursPackage Included:1 X BT610 Car Bluetooth Audio Receiver