Our radios are new upgraded units featuring electronic volume and tuning controls that allow all function control with outer knobs only. Inner radio knobs are cosmetic only. both AM and FM tuners upgraded as well as 200 watts of power. Auxiliary inputs allow direct connection for iPod, DVD, Satellite Radio, Nav, TV, etc. The USA-1BK features the following: 200 Watts Power Rating AM/FM Auto Reverse Cassette Dual RCA Outputs & Inputs for iPod, MP3, DVD, etc. Upgraded AM/FM Tuners for Optimum Reception Separate Bass & Treble Controls 18 FM/12 AM Presets Seek and Scan New electronic Volume & Tuning Controls Two Year Factory Warranty