The product is a radio AM FM CD unit with auxiliary mp3 input designed for Chevy Trailblazer and GMC Envoy models manufactured in 2002-2003. It is a direct replacement part with a 90-day warranty and requires dealer unlock. The radio is made by Delphi Delco Electronics in Mexico and features a black surface finish, making it a factory OEM part with the manufacturer part number 15169545 and interchange part number 638-01441. It is a genuine GM part designed for front placement in the vehicle.