Jensen SMPS-200 Portable Stereo Speaker (Black) (Discontinued by Manufacturer) One-Box Stereo Sound, DSP Bass Blaster Compact & Lightweight Design for Easy Carrying & Traveling Blue Illuminated Control Buttons Output: 2 x 1.5W Power: 4 x 'AAA' (UM-4) (not included) or USB Power Adaptor (not included)