Wireless Bluetooth Speaker

Product Details:
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 350mah
Frequency response range: 100HZ-20KHZ
Output power: 3W signal-to-noise ratio ≥75dB
Power supply mode: Built-in lithium battery
Extended storage: 32GB
Bluetooth protocol: 4.0
Effective distance: 10 meters
Operation method: button
Playback format: MP3
Shell material: metal
Whether to support APP: No
Supported format: TF card
Speaker adjustment method: button