Wireless Stereo Lavalier Mini Lapel Smart Phone Microphone For Video AudioThis innovative wireless lavalier microphone is much easier to set. No Adapter, Bluetooth or Application needed. Our Noise Reduction Technology cuts off any noise interference while recording so as to ensure the sound quality. The small lapel microphone is free of wire. Equipped with High Density Spray proof Sponge and High sensitivity Microphone, our device clearly records every detail of the sound regardless of surrounded environment.