Item NO. HF-80 Bluetooth Rearview Mirror Hands Free Car Kit Features: Bluetooth specification: V2.0; range:0-10 m Easy to install and no need to remove the existing Rearview mirror Super bright LED caller's NO. display USB interface for software framework update. DSP technology, Full duplex, noise and echo suppression. Complete Bluetooth wireless installation With 1600mAh Lithium battery to provide typical standby time of more than 192 hours, talking time of 12 hours Voice dialing, last call redialing, and call waiting function. Built-in high intelligent microphone and powerful speaker. Package: Bluetooth Rearview Mirror Cigarette Light Charger User Manual in English Packing Box