Descripotion Color: Black Model: BT - 698D Input voltage: AC 220V / DC12V (in the car) Plug: EU plug (sent with an adapter depending on the country) Peak power: 180W + 180W Channel: 2 CH Charge impedance: 4-16 SNR: 90dB FM frequency: 87.5-108MHz Frequency: 10Hz - 20KHz Sensitivity: 0.25mV-300mV RC power supply: CR2052 battery (built-in) Size about. 16x11.5x5.5cm / 6.30x4.53x2.17 ' Characteristics: -Mini HIFI digital audio power amplifier. -SD card, U disk, play mp3 format, supports FM stereo radio. -With treble, bass and volume controls, very easy to use. -German distortion provides a clearer, stronger, and powerful sound. -Two main channel output. -With remote control function. -DC / AC power in suitable enemy home or your car. -Bluetooth Function