Hello, WIRELESS LAPEL MICROPHOONES if you need it, please contact us. thanks. We can send the detail types for you as a reference. It doesn't need APP,plug-and-play,one-click connection,easy to wear. Intelligent noise reduction,long endurance of 10 hours Small and convenient,it compatible with various devices,support mobile phone, tablet, camera, notebook,etc regards Sales department-Tony in Shenzhen, China