New wireless waterproof bluetooth speaker

Connection method: Bluetooth connection, TF card, AXU

Interface type: USB  

Battery capacity: 3600mah  

Frequency response range:  F0Hz~18KHz

Signal to noise ratio: ≥75dB

Power supply mode: built-in lithium battery 

Playing time: 12h  

Charging time:3h

Effective distance: 18 meters  

Operation mode: button