Plug and Play & Auto Connection: No driver, Bluetooth, or app needed. Just choose the right adapter for your device, insert the receiver into your device, then open the lavalier microphone and receiver, which will automatically pair. Omnidirectional Microphone & Intelligent Noise Reduction: This microphone uses a highly sensitive microphone head with a 360° polar pattern to quickly capture detailed sounds. Our smart noise reduction technology cuts out most noise interference during recording to ensure clear sound. Easy to Carry & Wide Compatibility: Small finger size, compact body doesn't take up much space and doesn't add too much weight when transporting. The mini clip easily holds it in your collar or pocket. Our wireless lavalier microphones work with camera/gopro/DESKTOP/Notebook/MacBook/IMAC/iPhone/iPad/Android phone/tablet. Note: Some devices require adapters and may not be included. Long-Distance Transmission & Long Working Time: The lavalier wireless microphone system is international 2.4GHz wireless transmission, easy to connect and use. Covers a signal of 65 feet (20 meters), with a transmission delay of only 0.009 seconds. Both the transmitter and receiver of the microphone are equipped with a rechargeable battery and can be used for up to 6 hours after about 2 hours of charging. Dual Wireless Microphone: This wireless microphone kit includes 1 receiver, 2 microphone transmitters, and 2 adapters to record audio or video from both sides simultaneously. Additionally, you can use one microphone and one receiver. Note: Before using the wireless lavalier microphone for the first time, please read the user manual and charge it. You must remove the receiver to hear audio playback.