Easy Installation Only two connections away: connect to car stereo via 3.5mm AUX port and connect to the included car charger.
Power On and Off with engine ignition Automatically power On when you start the car, and off while engine turned off.
Once on, automatically connect with the last paired device(Android system, not IOS) Safe for Calling while Driving With Built-in high performance microphone, you can answer phone calls hands-free while driving by pressing onetime the "play/pause" button, or press 2 times the button to refuse it.
Dual Port USB CHARGER Comes with cigarette lighter power adapter with 2 USB charging ports; Able to charge additional device at the same time Latest Bluetooth 4.0 Latest Bluetooth 4.0 technology offers more stable signal transmission and lower power consumption, easy to pair and up to 33 feet range.
Bluetooth Version: 4.0 Bluetooth
Profiles supported: HFP, A2DP
Bluetooth Frequency Range: 2.402GHz-2.480GHz
Input Voltage: DC12V-24V
Frequency Response: 20Hz-20KHz
Bluetooth Controller Box Dimension: approx 42.0mm, h=15mm