Plug and play and automatic connection: no driver, Bluetooth or app needed. Simply choose the correct adapter for your device, plug the receiver into your device, then turn on the Lavalier microphone and the receiver, which will pair automatically. Omni-directional microphone and canceling Intelligent noise: The microphone uses a highly sensitive microphone head with a 360 polar pattern to quickly pick up rich sounds. Our intelligent noise canceling technology eliminates most noise interference during recording to ensure clear sound. Easy to carry and highly compatible: the compact finger-sized body does not take space when transported and does not add much weight. The mini clip makes it easy to carry in a collar or pocket. Our wireless lavalier microphone works with cameras/gopro/DESKTOP/laptops/MacBooks/IMACs/iPhones/iPads/Android phones/tablets. Note: Some devices require an adapter which may not be included. LONG RANGE AND LONG RUNTIME TRANSMISSION: The Lavalier wireless microphone system is an international 2.4GHz wireless transmission, easy to connect, and covers a signal of 20 meters with a transmission delay of only 0009 seconds. Both the transmitter and the receiver of the microphone are equipped with a rechargeable battery that offers up to 6 hours of use after approximately 2 hours of charging. Dual wireless microphones: this wireless microphone kit includes 1 receiver, 2 transmitter microphones and 2 adapters to record sound or video from both sides at the same time. Also, you can use only one microphone and one receiver. Note: Read the user manual and charge the Lavalier wireless microphone before using it for the first time. You must remove the receiver to hear audio playback.