Speaker：6mm * 2

Bluetooth Version：V5.0

Transmission Distance：15-20M

Taking Time：4.0-6.0 Hours

Music Time：4.0-6.0Hours                                                                                                                  

Grade of waterproof: IPX7

Battery Capacity：45mAh

Product Dimensions：19.3*23.4*24.7MM

Charger box battery capacity:400mAh

Charger box dimensions:56.3*38.2*32.3MM