Peak Power 30W Power input DC 15V,2A Peak Power PMPO 500W Frequency Response 50Hz-20KHz Woofer size +impedance 15 inch 3ohm Tweeter size +impedance 1 inch S/N Ratio ≥72dB Battery type Lead acid Battery capactity 2600 mAh Battery Playing Time (Max vol.) 2 hours Battery Playing Time (50% vol.) 3.5 hours Battery Playing Time (Low vol.) 6 hours Battery Charging Time 4 hours Battery weight 800gr Bluetooth Version 4.0 Bluetooth frequency 2400-2483.5MHz Wireless Mic frequency 210.3MHz USB MP3 Max 64GB - 20.000 songs MicroSD/TF MP3 Max 32GB - 10.000 songs Dimensions: 440 x 360 x 690 mm Net Weight 13000gr