BATTERY & WIRELESS SYSTEM: This small microphone is wireless, can run for up to 4.5 hours on a full charge, and has a signal coverage range of 60 feet, which is enough to support daily use EASY CONNECTION: This wireless lavalier microphone is simple to set up, no Bluetooth or apps required. Simply plug the receiver into your device and turn on the portable microphone, the two parts will automatically pair, making operation easy Noise reduction function: Equipped with splash-proof sponge, plush windshield and high-sensitivity microphone, you can clearly record your voice no matter where you are, and the noise reduction function can cut off noise interference during recording Note: This lavalier microphone does not require Bluetooth connection. For Android devices, be sure to turn on the OTG function before use. The receiver of this product does not need to be charged separately. If you have any questions, please contact us Wide Compatibility: This innovative wireless microphone comes with an adapter for use with , Android, iPad and more,Perfectly adapted to your device,Let you no longer be bothered by the recording equipment when recording material