Germany wireless Bluetooth 3d surround speaker

FREQUENCY RESPONSE RANGE: 100HZ-20KHZ
Processing method: OEM processing
Playback format: MP3
Whether there is a radio function: Yes
Speaker adjustment mode: buttons
Logo printing: Yes
Power mode: USB
Color: blue, black, red, gold, silver gray
Built-in battery capacity: 500mAh-800mAh
Output power: 10W or less
Channel: 2.1
Operation mode: press the button
Supported format: TF card
Signal-to-noise ratio: ≥75dB
Extended storage: 32GB