1??Receiver can be connected to devices such as mobile phones/SLRs/micro?singles to stably receive the audio collected and sent by the transmitter, and input the recording to the device synchronously, and the audio and video are recorded simultaneously. 2??Receiver has a 3.5mm / 0.14in monitor interface, which can be connected to headphones. The photographer can effectively monitor the microphone while shooting, ensuring that the microphone works efficiently and stably in real time. 3??Support 180Hz low?cut button pass, filter out low?frequency noise in special occasions, such as wind, air?conditioning, and traffic noise, so that the output sound is clear and clean. 4??Transmitter is more compact and concealed, which can be directly clipped on the collar, and can also be extended for an external lavalier microphone. 5??WAir?G1 (A2) 1 drag 2 wireless lavalier microphone is suitable for various scenes such as video shooting and live broadcast news interviews. 6??Auto?linking and quick start, one?key boot, the system will automatically link and pair successfully and work immediately. 7??System has a built?in 400mAh lithium battery, which can last up to 5 hours, and it can be used while charging.