Sony ECMAW4 Wireless Lavalier Microphone for YouTube, Vlogging, Streaming - Black | Compact & Lightweight Clip-on Mic for iPhone, Android, Smartphones

The beauty of these wireless microphones -- one is a transmitter, and the other is a receiver, is that the speaker can record himself or herself while walking around. There's no tether with a corded microphone, and it's better than the microphone of the Canon Vixia camcorder (which will pick up sounds from the camera). The vocal quality is fair, and I use it when I'm recording my YouTube videos as well as my speeches. BUT remember to buy lots of AA batteries -- the transmitter runs out of juice after about 20 minutes, and there's no sign that it isn't working until you replay your camcorder to hear the sad sound of silence. What I've learned to do is buy one of those packs of 16 or 20 AA batteries, and insert a new battery in both transmitter and receiver each time, problem solved. I assume the transmitting distance is only like 30 feet or so; I've only recorded myself when I'm in the same room as the camcorder, and it works fine, but I've not tested it at farther distances between the camcorder and subject.