Warranty: 1 Year Features: Bluetooth karaoke speaker with wireless streaming support. Portable and rugged design for easy mobility. Multiple connectivity options: Bluetooth, AUX, USB, FM, TF Card. Up to 8 hours playback with rechargeable battery. 40W RMS output for powerful and clear sound. Technical Specifications: Power Output: 40W RMS Woofer Size: 8 Inch Impedance: 4? Battery Capacity: 4000mAh Frequency Response: 60Hz – 20kHz Signal to Noise Ratio: >60dB Power Supply: DC 9V / 1.5A