XIAOKOA UHF Lavalier Wireless Microphone Recording Youtube Live Interview Mic for Iphone Android Camera noise reduction microphone Package List 1X Transmitter 1X Receiver 1X 4 Pin to 3 Pin Adapter 1 X USB cord 1X user manual Not support Macbook,laptop UHF latest wireless technology, stable signal, no delay, no interference from home WIFI signal.(Only for Recording, not compatible with amplifiers, speakers) Omni-directional Microphone,high sensitivity to pick up sound, intelligent noise reduction, make the sound more clear and realistic. Mini metal clip allows you to easily clip it to your collar, tie or pocket.Very portable Ultra-long transmission distance, up to 50m in open areas. Support multiple groups to use at the same time(up to 40 set), long press the transmitter - for 3 seconds to switch channels Super battery life, built-in 400mAh rechargeable lithium-ion battery, 2 hours charge, 5-6 hours available, red light on when charging, red light off when fully charged. Iphone and Android universal(Android 9.0 above no need to download third-party recording software) : support phone recording, suitable for Youtube, Google, live broadcast, interview, video recording . We also include a free 4pin to 3pin adapter,Which can be used for the Camera/PC. feel free to contact if any problem. Reset method: 1.turn off the transmitter and receiver. press volume+ button of transmitter and dont 2.loose,turn on the switch at the same time,the blue light will blinking several times, 3.loose the volume+ button,reset finished. 4.Turn on transmitter and receiver and see whether is working normally.