USB Bluetooth Smart Subwoofer Speaker A36

Product parameters:A36 - Bluetooth Speaker - BlackBattery capacity: 1200mahSound unit: 58mmAcoustic structure: closedFrequency response range: 80hz - 18khzSignal to noise ratio: ≥ 80 DBCharging voltage: 5VConnection:Bluetooth version: 5.0Connection distance: 12mCharging interface: micro usb interfaceGeneral:Microphone: full pointing microphoneBattery life: 12 hours for listening to songs (medium volume), about 10 hours for talking, 2 - 3 hours for quick chargingWith Full Frequency SpeakerUnlike common monotone cavities, we use 2+2 (two active speakers + two passive resonant speakers) for a wider cavity design, which greatly improves the bass resonance and forms a wide auditory feeling.