Features:-100% brand new.-High quality car bluetooth speakerphone.-To work with any Bluetooth enabled device.-Advanced built-in microphone which adopts D.S.P to eliminate echo or suppress noise.-Hands free& voice powered-Dual 2-watt speakers combat road noise-Could connect with two different phones at the same time.-Multi-Device pairing records with 8 bluetooth mobile phone.-We recommend to charge the battery fully before you fisrt use.-The red light is constantly on during charging，and will be blue when the charging is finished.Introduction:1.Listen up：-When it is coming call，automatic answer， not need press button.2.Double Down On Sound：-Dual2-watt speakers make your calls and music come through loud，clear.3.Give Your Wheel A Hand：-Drive more responsibly with hands-free calling and texting.4.Push All The Right Buttons：-Big buttons help you keep your eyes on the road not the device.5.Remind Who：-Friendly remind who is coming call，it will report the hone number.Specifications:-Protocols Supported: HSP，HFP，A2DP，AVRCP-Bluetooth Version :3.0 -Operating Frequency Range:2.402 Ghz to 2.48Ghz-Transmitting Power: Class 2-Charger Input:12-24V-Charger Output: DC 5V±5%-Charger Power:(Max 1500mA)-Built-in Rechargeable Battery: 3.7V 650mA-Charging Time: 3 hours-Talking Time: 8 hours-Standby Time: 500 hours-Connecting distance: up to 10 meters Package including:1 x Bluetooth Handsfree Speakerphone1 x Car Power Adapter1 x USB Cable1 x User Manual