Item NO. VTB-88A Bluetooth Hands Free Car kit (rear view mirror) Features: l Bluetooth specification:1.2; range:0-:10 m l Easy to installation and no need to remove the original rearview mirror l Independent FM wireless earpiece to protect your secrets l 35 seconds record and play function. l Super bright LED caller NO. display l Complete blue tooth wireless installation l DSP technology, Full duplex, noise and echo suppression. l With 16000mAh Lithium battery to provide typical standby time of more than 168 hours talking time of 11 hours and head talking time of 5 hours l Voice dialing, last call redialing, and call switching function. l Built-in high intelligent microphone and powerful speaker. l Transmit the signal into car radio by FM frequency l USB faucet to software framework . Packing / specification pieces per carton: 10 pcs / ctn N.W: 9.3 kg / ctn G.W: 10 kg / ctn Measure: 35.5 cm X 32.5 cm X 38.5 cm