Retro Knob Wireless Bluetooth Speaker U Disk Card Radio Portable Multi-color Bluetooth Audio

Product Description 

 Bluetooth solution: JL4.1

Speaker: 3W
Battery: 3.7V 400mAh
Receiving distance: 10 meters (range according to the environment)
Charging time: 2-3 hours
Playback time: 2-2.5 hours
Frequency response: 50HZ-20KHZ
Signal to noise ratio: ≥90db
Housing material: ABS plastic + plating
Color: black, white, pink, blue, green
Support function: Bluetooth / U disk / TF card / audio output
Product size: about 97*50*73mm / 3.82*1.97*2.87in

Packing List:

USB cable * 1 

speaker  * 1
Manual * 1
Packaging box * 1

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