Waterproof Outdoor Bluetooth Speaker

Connection method: Bluetooth connection
Battery capacity: 4400
Output power: 12w
Power supply mode: built-in lithium battery
Channel: 2
Play time: 24 hours
Bluetooth protocol: 4.2
Number of speakers: 2
Effective distance: 10 meters
Function: waterproof, call function
Operation mode: button
Shell material: plastic
Speaker adjustment method: button
Material: Silicone
Appearance size: 166x45x54mm
Power supply mode: USB