USB/TF Card
Aux in,with earphone jack
FM stereo radio(50-100 channels)
Separate voume contrl
Power Supply:BL-5C Li-battery/18650 Li-battery/USB
A line the design
Speaker size: 3 "×2
Output power: 4W×2
Impedance: 4Ω
Frequency response: 90Hz~18kHz
Sensitive: 80dB±2dB
S/N Ration: ≥60dB
Distortion: ≤0.3%
Item Size: 250×148×68mm