Wireless Microphone lavalier K35 jack 2 microphones

K35 jack lavalier microphone with two wireless microphones Wireless lavalier microphone for recording/blog.. Microphone: digital silicone sign Input voltage: 5V Batteries for microphone: 60 mAh Receiver battery: 180 mAh Battery life: 5-6 hours Signal/signal ratio noise: 64dBm Adaptive noise reduction Transmission delay: 30ms Sensitivity: -42dB Frequency response range: 20-20KHz Transmission distance: barrier-free 20m-30m Press and hold for 3 seconds; to turn on the device; and insert the audio head of the receiver into the audio hole on your mobile phone or stereo; And the green light is flashing; pointing; that it is in connecting state Press and hold the microphone's power button; to turn it on; both red and green lights flash; to indicate; that it is in standby state The green light of the receiver is always on; and the green light of the transmitter is always on; which indicates successful pairing