?TFT Screen Display?BoomX-DMI wireless microphone adopt TFT screen for the manufacturing,all the font and icon on the screen are crystal clear.With TFT screen display function,you can monitor signal dynamic bar,battery use condition etc. ?Built-in Li-ion Battery?BoomX-DMI wireless lapel mics built-in rechargeable batter and it can provide 6 hours of working time on a single charge.Working range up to 164 feet(164ft in Open Area, 65ft in area with obstacle). ?Real-time Audio Monitoring?With Real-time Monitoring Function of the professional wireless lavalier system,you can test whether it is working normally during recording to make sure the smooth recording.BoomX-DMI wirelss microphone brings you more professional and convenient recording. ?Multiple Input Modes?BoomX-DMI wireless lapel microphone comes with lavalier microphone and transmitter with microphone input modes, which can be flexibly solving many inconveniences of shooting video and applied to different occasions. ?2.4G Digital Wireless, Global Frequency?Comica BoomX-DMI wireless mic adopt advanced 2.4G wireless technology, It can automatically adjust the frequency when frequency are disturbed and brings you very good anti-interference effect.Wide used for YouTube Facebook livestream,Vlog recording,interview,wedding,church ect.