Plug & Play, No APP Required: Unlike other microphones, the innovative lavalier microphone includes a transmitter and receiver that connect automatically, so no APP and Bluetooth are required. Just plug the transmitter into the device (USB C port) and play directly. Real-time crystal voice synchronization without delay: Real-time automatic synchronization technology is adopted, which greatly reduces the post-editing of video. Supports multi-channel real-time mixing, and can synchronize mobile phone background music and vocals in real time. Can be used for Youtube/Facebook Live: You can use the microphone directly when playing Youtube or Facebook live, which is not possible with traditional Bluetooth. MINI SIZE PORTABLE AND DURABLE: The wireless lavalier mic can last more than 6 hours when fully charged. Plug and play, no cables required - perfect for outdoor recording. Lag-free CD high-quality stereo. Designed for Video Vloggers, Blogger Content Creators, Interviewers and Lectures No APP or bluetooth required, connection is very simple, plug and play "All our products go through strict quality inspection. If there is any quality problem or you are not satisfied with the product contact us. We will give you the best solution.