LED Cylinder Wireless Speaker is designed for immersive audio experiences anywhere. Specifications: Wireless Version: V5.3 Working Distance:10M; Frequency response:65Hz-20KHz Working frequency： 2.402GHz-2.480GHz; Wireless Protocol： A2DP、AVRCP、HSP、HFP; Speaker Size:2*52MM Output: 15W Battery:3.7V/1800mAh Talk Time:4H Standby time: 4H Charging Time: 4-5H; Charge port:Type-C DC5V/500-1000mA Weight： 695g; Size:83*83*220MM; Max supported memory card capacity: 32GB