bluetooth speaker

Function: bluetooth /TF card /USB/Line in/FM/TWS;

Output power :3W

Speaker unit : 4Ω,3W

Frequency range:100Hz~10kHz

Impedance:4Ω

Power supply :USB 5V built-in lithium battery.

Battery capacity: 3.7v 300mAh/ 80% volume for 1-2 hours

Products size:9.2*9.2*4.7CM

Packaging quantity:60 PCS/CTN