Superior Noise Reduction: Our dual wireless microphones are equipped with professional smart noise reduction chips and high-density anti-spray foam, with 360° pickup characteristics, which helps eliminate noise interference and improve sound quality, clearly recording every detail of the sound regardless of the environment. Omnidirectional microphone provides the clearest sound quality. 4-in-1 Receiver & 2 Wireless Microphones: Upgraded 4-in-1 universal receiver with USB-C/3.5mm TRS/USB-C adapter, compatible with camera/GoPro/desktop PC/laptop/MacBook/iMac/iOS iPhone/iPad/Android phone/tablet, etc. The receiver can connect to up to two microphones simultaneously, and of course, one Bluetooth microphone can be connected. Perfect for filmmakers, vloggers, YouTubers, mobile journalists, and content creators. (Note: Some devices may require an adapter that may not be included.) Plug and Play & Auto Connect: Turn on the power switch on the receiver and mini microphone, then connect the corresponding connector on the receiver to your devices. They will connect automatically. No driver, Bluetooth, or app is needed. If the microphone does not record sound, please change the default microphone on your device. Max. 20m Distance and 6 Hours Working Time: With a built-in optimized antenna and advanced 2.4GHz transmission technology, easy to connect and cover 20 meters for signal, automatic real-time synchronization, audio 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 charging. The microphone also supports charging during recording. The receiver and mobile phone can be charged simultaneously via the Type-C charging cable. Portable Carrying and Packing List: Small finger size, the compact body does not take up much space or add too much weight when carrying it. The mini clip allows you to easily attach it to your collar or pocket. The package includes a microphone transmitter*2, a 3-in-1 receiver, a USB adapter, an extra windscreen*2, a charging cable*1, a storage bag*1, and a user manual.