1. Touch 6 light modes: Synchronous RGB / Dynamic beating 7 color cycle bright / Red Green Blue long bright 2. Power on off / Volume Control 3. Enhanced bass effect. 4. Power Input : 5V , USB+3.5mm audio 5. Speaker RMS : 3 W x 2 6. Speaker Unit Size : 2inch x 2 7. Frequency : 150Hz~20kHz 8. Signal to noise ratio : ?65db 9. Product size : 400 x 75 x 67 mm 10. Materials: Plastic