CP0278W Features Comes in a spider shape Superb stereo sound Miniature design for portability Built-in polymer battery Retractable cable General Specs Brand & Model TY-021 Color White Power Output: 3W， Input: DC5-5.5V， 450mA Frequency 150Hz-18KHz (±3 dB) Adapter AC adapter S/N Ratio ≥ 90 dB Battery Type Built-in polymer battery