Waterproof Bluetooth Sound Mini Steel Cannon Outdoor Travel Portable Speaker

Connection method: Bluetooth connection
Frequency response range: 100HZ-20KHZ
Signal to noise ratio: ≥ 75dB
Number of speakers: 1
Effective distance: 10 meters
Power mode: USB
Waterproof grade: IPX 4
Bluetooth version: 5.0
Shell process: ABS
Additional features: waterproof, call function
Built in battery: Built in battery