Philips MCM530 150-Watt Micro Shelf System with 5-Disc CD/MP3 Changer and Digital AM/FM Tuner (Discontinued by Manufacturer) MP3 micro hi-fi system with 5-CD changer USB PC Link for MP3 streaming from your PC and playback of up to 50 hours of MP3-CD music Class D digital amplifier and MAX sound enhancement technology for instant power boost Connections include an audio aux and USB PC Link inputs and a 3.5 mm stereo headphone jack 2-way bass reflex speaker system with 5.25-inch woofers and 2-inch tweeters; 75 watts per channel