Diy Retro Mini Portable Card Speaker

Product information:
Function: card, U disk
Connection method: Bluetooth connection
Interface type: USB
Frequency response range: 60Hz-15KHz
Output power: 5
Signal-to-noise ratio: ≥70db
Power supply mode: built-in lithium battery
Shell material: plastic
Appearance size: 70*110*50MM
Color: white, pink, blue, black, green
Battery: 3.7V 400MAH
Receiving distance: 10 meters
Charging time: 2-3 hours

Packing list:
Bluetooth Speaker*1pc + USB Cable*1pc + User Manual*1pc