Wireless Bluetooth Private Speaker Long Sound Heater USB Card TWS Couplet Color Light

Product information:
Power supply mode: Built-in lithium battery
Frequency range: 100HZ-20KHZ
Processing Method: OEM
Packing List: Host, charging cable
Applicable people: general
Functions: card insertion, radio, voice prompt, call function
Power type: USB
Color: blue, black, red
Interface Type: USB
Applicable scenarios: car, desktop, fitness, outdoor, home, mobile/portable, outdoor lawn
Channel: 2
Shell Material: Plastic
Operation mode: Button