Card Audio Wireless Bluetooth Mini Gift Speaker

Product information:

Interface type: USB
Battery capacity: 400MA
Frequency response range: 100HZ-20KHZ
Signal to noise ratio: ≥75dB
Power supply mode: built-in lithium battery
Channel: 2.1
Expansion storage: 32GB
Bluetooth protocol: 4.0
Number of speakers: 1pcs
Effective distance: 10 meters
Operation mode: button
Shell material: metal
Box material: plastic
Colour: Black

Size information: