Bluetooth speakers
Availability: In Stock
Solution: BK 4.2
Power output: 3w
Function:TF card, AUX, FM radio, USB disk
speaker：40MM
Battery Capacity;1200mAH
Voltage: 3.7V-4.2V
Bluetooth distance:10M
S/N ratio:≥80dB
Frequency response:20Hz–20K Hz
Distortion：≤0.5% w1K Hz
Working time:5-6hours
Charinging time:2-3hours
Color:black/red / blue / green
Material :plastic, silicion
