Portable wireless Bluetooth speaker with TF card slot

Portable wireless Bluetooth speaker with TF card slot
Connection method: Bluetooth connection
Frequency response range: 100Hz – 20KHz
Signal-to-noise ratio: ≥ 75dB
Appearance dimensions: 108*54.5*37.5mm
Power supply method: USB
Bluetooth version: 5.0
Built-in battery capacity: 800mAh – 1000mAh (inclusive)