Features: Voltage detection, takes care of your car battery. With a Bluetooth headset to answer, high-definition call, use while charging. Bluetooth hands-free call, built-in microphone, safe to answer the phone. With 2 USB charging ports, can charge for your phone and tablet. Specifications: Model: ER9 Material: ABS Color: Black Size: 36*87*101mm Working voltage: 12-24V Voltage limit: 9-26V LED display Bluetooth version: CSR4.2 Bluetooth sound comes out: A2DP Bluetooth transmission distance: 8M FM frequency: 87.5-108Mhz Play format: MP3/WMA USB output: 5V / 2.5A / 1A Mic effective distance: 2m Sensitivity: -42 dB +/3db 360 Working current: 45mA (maximum) Standby current: 25mA (maximum) Frequency: 2.402-2.480ghz Sensitivity: -92 dBm RF output: 4 dBm Transmit power: 87 dBuv/107dBuv Battery capacity: 100mA Life time: 7 hours Package Included:1 x ER9 Car Bluetooth Player with HeadsetNotes:1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. ...