AM/FM-MPX Stereo Tuning Digital LCD Display Panel - RCA Line Out (4Ch).USB/SD/MMC MP3 Player - 160 Watts Total Output(4 x 40 Watts).Volume/Balance Control - Dimensions: 7''W x 4.72''D x 1.96''H.AM Frequency Range: 520~1710kHz.FM Frequency Range: 87.5~108MHz This simple headunit is perfect for listening to AM/FM and your favorite digital music via the SD card slot or USB drive. It easily replaces your car's stereo. Easily adjust the sound using volume, balance, and tone controls. Displays the current time. 4 channel output, 40 watts on each channel. Mounting hardware included.