BMW PROFESSIONAL FM/AM RADIO & CD PLAYER For E90 or E87 models, 1 & 3 Series vehicles. 

BMW Genunie part with std bass/treble/balance/fader controls while also being steering wheel control ready, vehicle dependent. 
AM/FM Radio Frequency range: 
AM (522-1620KHz), 
FM (87 - 108MHz)

Used unit, it's not brand new