Specification : Speaker Bluetooth Karaoke R.M.S: 15Watt S/N Ratio: 75dB Battery: 3.7V / 1500mAh Speaker driver: 2O / 8” Frequency response: 55Hz – 20KHz Dimension: L265 x W200 x H365 mm Function: FM Radio, Bluetooth, RGB Display, USB, AUX-IN, Built-in Battery Suara lebih kencang dan karaokenya tidak ada delay / echo Accessories : Mic Cable & USB Cable