... status, Song Name and Song Lyrics Support multi-languages Support for Simplified Chinese, Traditional Chinese, English , French , German, Italian, Portuguese, ... external speakers Power supply built -in Lithium battery , mini USB power, or DC-5V adaptor USB2.0 high-speed mode and is ... is power-on.Specifications1. Output rate RMS 3W THD=10%2.Frequency response 150-18000HZ(+/-3dB)3. Signal to Noise Ratio ...