Features‎:‎ 1‎.‎Good for MP3‎,‎ iPod‎,‎ CD player input jack 2.200W max power output 3‎.‎Low distortion 4‎.‎Great for use on your vehicle or your home 5‎.‎Smart‎,‎ lightweight aluminum casing 6‎.‎High quality stereo sound + heavy bass output ‎(‎only LP‎-838‎)‎ 7‎.‎Automatic diagnosis work power source‎.‎ May exchange or the direct‎-current supply 8‎.‎The pocket‎-sized fan outward appearance has counted‎.‎ Monitors the ear to put the output‎.‎ ‎(‎only LP‎-200‎)‎ 9‎.‎Special‎-purpose biplate integrated circuit‎.‎ The output is big‎.‎ Timbre exquisite Specification‎:‎ Color black DC Output 12V‎-18V 2A Jack input 1/8‎"‎ ‎(‎standard stereo jack‎)‎ Voltage 12V Material lightweight aluminum Dimensions 14 x 10.5 x 4cm ‎(‎5.5 x 4 x 1.5‎"‎‎)‎ Input impedance 47K Speaker Impedance 4‎-8Ω Total harmonic distortion 80dB Frequency response 20Hz‎-20KHz