150W Subwoofer Portable Outdoor Karaoke Speaker is designed for immersive audio experiences anywhere. Specifications: Output:150W Battery:18000mAh Wireless version: V5.3 Playback time:8H Charge time:≤7H; Charge port:Type-C 5V/3A Working distance:12M; Remote control distance： 10M; TWS connection distance:8M Microphone distance： 8M Frequency response:40HZ-20KHZ Working frequency： 40Hz-18KHz Audio signal-to-noise ratio:70dB; Support wireless profile： A2DP v1.3, AVRCP v1.6, HFP v1.7, HID v1.1, AVCTP v1.4, AVDTP v1.3, and SPP v1.2; Microphone Specification : Sensitivity：-53.7（ ±3） dB（ at 1KHz） Impedance： 600（ ±15%） Ω（ at 1KHz） Frequency Range: 70Hz~13KHz