Review on Bietrun Wireless USB 2in1 Lavalier Lapel Microphone + Headset System | 98 Ft Range, Rechargeable | Windows, Mac, Linux Compatible | for Zoom, YouTube, Recording, Streaming | Computer, PC, Laptop, Desktop by Marc Farrell

Used this mic to record a powerpoint presentation being made in front of a live audience. There is no video camera but I would like the audio "lecture" to be recorded along with the PPT video stream and I can walk around the classroom. It worked well, the range was sufficient. The audio from the microphone was cut off a bit, but could be improved by changing the position of the headset. The battery lasted all day while we switched off for lunch.