Philips AZ302S Compact design MP3-CD Silver CD Soundmachine. Audio system: Stereo, RMS rated power: 2 W, Sound enhancement: Dynamic Bass Boost. Supported radio bands: FM MW, Antenna: FM antenna. Media types supported: CD CD-R CD-RW MP3-CD. Volume control: rotary. Battery type: C size (LR14), Power requirements: 110 - 127V and 220 - 240V AC voltage selectable, Battery voltage: 1.5 V