?3 in 1 USB C Charging Cables,5 Hours Runtime?BoomX-D2 wireless lapel mic built-in rechargeable battery and standby time up to 5 hrs with full-charging. Comes with a 3 in 1 USB C charging cables, it is very convenient to charge. ?One-Button Muting & Real-Time Monitoring?With the Real-time Monitoring Function, you can test whether it is working normally during recording to make sure the smooth recording. One-key Mute ensures that the microphone works efficiently and stably. ?Internal/ External Lapel Mic?Comica BoomX-D2 wireless lapel microphone comes with a lav mic and internal mic as input modes for you to choose. Adopts omnidirectional condenser radio, 360° surround pickup makes the sound more three-dimensional. ?Noise Reduction & Low Latency?Built-in professional-grade intelligent noise reduction chip, which can effectively filter noise and provide high-fidelity sound quality. Latency reduced to less than 20ms, make the recorded audio smoother. ?Dual-Channel System & Mono/Stereo Mode?Comica BoomX-D2 wireless microphone with dual transmitters and one receiver, and it can support mono/stereo output, which is easy for post-processing of audio, perfect for interviewing, recording, vlogging, and live-streaming. ?2.4G Wireless Mic System?Comica BoomX-D2 wireless microphone adopts advanced 2.4G wireless technology, which can can automatically adjust to the best channel to obtain the stable signal. Working distance up to 150ft, ideal to capture the audio in large scene.