Colorful waterproof Wireless Speaker is designed for immersive audio experiences anywhere. Specifications: Wireless Version: V5.3+BR+EDR+BLEspecification Working Distance:10-15M; Speaker Size:78MM Function:BT/USB/TF/TWS/AUX Wireless Protocol：; A2DP1.0 /AVRCP 1.5; /AVDTP1.0/AVCTP1.4/HFP1.5/GAVDP1.0; Output: 30W; Battery voltage： 11.1-12.6V Battery:4500mAH; Music Time:8-10H Standby time: 25H Charging Time: ≥3H Weight： 1138g Size:232*105MM; Max supported memory card capacity: 64GB