Tuner Bands: AM/FM Output Power: 10W x 2 (total) Speaker Diameter: 5.25" AUX Input: Yes Features: Play your iPod/iPhone music while charging using the USB to 30 pin Apple cable Using the rotary dial and front facing screen, play and control music directly from storage devices including USB flash and external hard drives Compact design and handle let you take your music anywhere Input options let you connect most audio devices and mix with an instrument Power Requirements: DC 18V Adapter 12 "D" size 1.5V Batteries Dimensions: 10.2" x 10.2" x 10.2" Weight: 12.5 lbs.