Superior Performance you can rely on: The K9 wireless mic Automatic connection, noise reduction, reverb, loudspeaker, headphone monitoring, pause mode.
Microphone: Digital Silicon Mark
Input Voltage: 5V
Battery Capacity: 40MAH
Endurance: 3-4 Hours
Signal-to-Noise Ratio: 64DBMA
Daptive noise reduction
Transmission delay: 30MS
Sensitivity: -42DB
Frequency response range: 20-20KHZ
Transmission distance: barrier-free 20m-30m
Single machine weight：11g
Color box size：12.1*8.1*3.1cm
