PLUG-and-PLAY Wireless Lavalier Microphone Compared with a wired microphone, the wireless lavalier microphone is not only not limited by distance, messy cables and poor noise reduction, but also more compact and convenient. In addition, 360 omnidirectional Transmission and lapel clip let us be hands free thoroughly. Simply connect the receiver to your device and the transmitter will automatically adjust instantly, then you can start recording or video. THINGS YOU NEED TO KNOW BEFORE YOU ORDER No APP or Bluetooth is required. Easy to use, just plug and play. Compatible with USB-C devices only. If you want to listen to the recorded video, you must first unplug the receiver connected to your device. If you want to output music while recording video, please use another device. (The device connected to the receiver cannot output music.) Please note that this lapel microphone does not support phone calls and online chatting. How can I check if the automatic pairing between the Lavalier Microphone and your device was successful? Connect the receiver to your device. Check the microphone light after pressing the microphone power button. Red light and green light flash alternately: receiver not connected to the device. Blinking green: The receiver is connected to the device and pairing is taking place. Constant green light: Successfully paired. Plug and Play The wireless microphone is easy to use without installing an app or establishing a Bluetooth connection.