... 18KHz6.sensitivity:80db±2db7.SNR:≥80dB8.THD:≤0.3%9.Audio Single input interface:φ3.5mm10.colors:black/red/yellow / ... receiver function4.LED light-emitting diode indication function5.AUX external audio input function: MP3 MP4 mobile PC6.Charge function:Universal USB ... music - PC, laptop, computer, MP3, MP4, mobile phone which have audio output connector to it directly - The machine search radio station ...