high quality Better Sound and Noise Reduction: With a Built-in optimized smart technology chip, the omnidirectional condenser lavalier mic pick up sound from all angles, and offer stable full-band 48KHz CD quality. Noise reduction chip can accurately filter various noises and has a strong anti-interference ability. lavalier microphone can effectively identify and restore the original sound in a noisy environment, getting crystal clear audio stereoLong Distance Transmission & Long Working Time: With a Built-in optimized antenna and advanced 2.4GHz transmission technology, easy to connect and cover 65ft(20 meters) for signal, automatic real-time synchronization, sound synchronization without delay. The microphone transmitter and receiver have built-in rechargeable batteries, the microphone transmitter and receiver can be used for up to 6 hours after about 2 hours of chargingPortable Carry & Packing List: Little Finger Size, the compact body won't take up so much room or adding to much weight to you when carrying around. Mini clip allows you to easily clip it to your collar or pocket. The package includes Microphone transmitter*2, 3 in 1 receiver, USB adapter, Additional windproof net*2, Charging cable*2, User manual, Storage box.Plug and Play & Auto Pairing: Turn on the power switch of the receiver and microphone, then plug the receiver (USB-C/3.5mm/USB) on your devices, they will automatically connect. No Driver, Bluetooth or App needed. If the mic is not recording sound, please change the default microphone on your device4 in 1 Universal Receiver and 2 Microphones: New upgraded 4 in 1 universal receiver with USB-C/3.5mm TRS/USB Plug, it is compatible with iPhone/iPad/Android Phone/Camera/Computer/Laptop/Macbook, etc. The receiver can connect two microphones at the same time, of course, it can also connect a microphone alone