Conditon: Item Type: Bluetooth Speaker Material: ABS Color: As Pictures ShownFunction: Support Bluetooth/memory card/USB playback, AUX audio input, microphone connection port, mobile phone holderBattery: 2000mAh(Built-in battery)Voltage: DC5V 1mAhWorking Time: 4-6 hoursCharging Time: 2-3 hoursSpeaker Number: 3Single Speaker Power: 5WTotal Speaker Power: 15W Frequency Response Range: 100HZ-20KHZSignal to Noise Ratio: >70dB 1?��Built-in 3 5W large speakers, output power 15W, subwoofer stereo, super dynamic sound quality.? 2?��Equipped with 2000mah powerful battery(Built-in battery), continuous battery life of 6 hours, standby time exceeds 120 hours, not afraid of outdoor use.? 3?��Comprehensive functions, support bluetooth/memory card/USB playback, AUX audio input, microphone connection port, mobile phone holder, all available, suitable for all groups of people.? 4?��Adjustable subwoofer, smart chip to ensure good sound quality, strong stability, connection range is more than 10m/10.9yd, make you listen music without restrictions.? 5?��You can connect the microphone to use, listen to songs, sing the songs, freely switch.