Waterproof Bluetooth Speaker

Connection method: Bluetooth connection

Interface type: USB

Battery capacity: 400MAH

Frequency response range: 40Hz-20KHz

Power supply: built-in lithium battery

Playing time: 2-3 hours

Bluetooth protocol: 4.2

Effective distance: 10 meters

Function: waterproof, drop-proof, voice prompt, card, remote control, radio, dustproof, call function