Features: Plug and play, no APP is needed: the Lavalier Microphone is different from others, which includes transmitter and receiver, they will automatically connect. Just plug the transmitter into the device (USB C port) and play it directly.  Real-time Crystal Voice Syncs without any delay: Using real-time auto-sync technology, which extremely reduces the video post-editing.  Support Multi-Channel Real-Time Mixing, it can synchronize the background music for phone and human voice in real-time.  Can work on Live Stream: the microphone can be used directly when you play Live stream.  CD High-quality stereo Sound without delay, The lavalier microphone provides a uniform frequency response and minimizes environmental noises.  With the lavalier mic connected to the transmitter, you're able to record audio up to 20m away from the camera, interference-free and convenient recording.  The wireless lavalier microphone can provide more than 10 hours of continuous use after being fully charged. Just Clip and go, no cables required, perfect for outdoor recording.  Type:Lapel Mic;  Material:ABS;  Battery capacity:80mAh;  Package Size:13 x 9.5 x 4.5cm / 5.1 x 3.7 x 1.8inch;  Package Weight:104g / 3.7oz;     Package Included:    1 x Mic Transmitter;  1 x Receiver;  1 x Charging Cable;  1 x User Manual