This is a Boss Audio 636CA 200 watt, car audio in-dash AM/FM MP3/CD receiver with a 3.5mm front auxiliary input. This 200 watt digital receiver offers an easy-to-use interface that provides a rewarding experience, as well as support for your favorite media. The AM/FM radio features switchable USA/Europe radio frequencies and a PLL synthesized tuner with 24 station presets. With the built-in preset equalizer curves (Flat, Pops, Rock or Classic) you can choose your listening preference from your radio or audio device that sounds the best. Featured for direct playback is MP3 ID3 tag, CD-R and CD-RW formats, a front 3.5mm auxiliary jack; which allows you to connect your iPod, iPhone or other digital audio player. A rear 5 volt RCA preamp output, allows you to add an external amplifier to your system. Also included, is a detachable front faceplate; for security and a wireless remote control. This unit has been remanufactured to 100% of Boss Audio's factory specifications.