Airship Karaoke Party Wireless Loudspeaker is designed for immersive audio experiences anywhere. Specifications: Speaker Power:400W; Speaker Size:190*114mm+78mm *2+48mm *2 Battery:18.5V/30000mAh; Wireless Version: V5.3 Working Distance:12M TWS Range: 8m; Frequency Response:40HZ-18KHZ Working Frequency :2.402-2.408GHz Wireless Audio Decoding:SBC; Wireless Protocol： A2DP v1.3, AVRCP v1.6, HFP v1.7,; HID v1.1, AVCTP v1.4, AVDTP v1.3, and SPP v1.2 S/N:80dB; Play Time: 3H(max volume） 5H(50% volume); Charging Time: 3H; Charge port: Type-C DC5V/3A;20V/3A Size:48.6*19.9*280cm; Weight:6.8kg; Microphone Specification:; Working Range:10m; Sensitivity: Min.-45dB;Type -42dB;Max -39dB (0dB=1V/Pa,at 1KHz); S/N:Min.:60dB (at1KHz S,P,L=1Pa(A-Weighted Curve) Frequency Response:90Hz~15KHz