Product information:
Function: plug-in card is waterproof and dustproof, voice prompt call function
Type: Bluetooth speaker
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 300 mAh
Frequency response range: 100HZ-20KHZ
Output power: 3W
Signal to noise ratio: ≥75dB
Display: None
Play format: MP3
Shell material: plastic
Support format: TF card
Speaker adjustment method: button
Box material: plastic
Color: white, blue black, red silver gray, orange green

Packing list:
machine, manual, exquisite color box packaging, charging cable