Boya Wireless Microphone BY-XM6-S1 Ideal for one-person vlog, YouTube video, live streaming, interview, recording, etc. Compatible with DSLR, mirrorless camera, smartphone, and computer. 2.4GHz wireless signal transmission technology. Hi-Fi and low-noise audio processing and delivering system. Built with easy-to-use, vivid, and informative OLED display. Built-in omnidirectional microphone and a lavalier microphone on transmitter. Headphone output jack on receiver for real-time monitoring. Stereo and mono outputs are available and switchable on receiver. Built-in Li-ion batteries for 7h use on transmitter and 6.5h use on receiver. Up to 100m (328ft) operation range without obstacles