Where are you going to use your wireless microphone? How far away will you be from the receiver? Will there be objects in the way? You’ll determine the strength of your receiver with these questions. If you’re unsure, sticking within the middle may be best.
What type of wireless mic system do you want? There are handheld, headsets, and lavaliers. There’s a time for all of these.
How many antennas do you want your transmitter to have (diversity)? The more the better, obviously. But the amount of antennas determines the strength of your signal (the diversity chooses which antenna is strongest) which in turn decreases the chances of dropouts.
The BOYA BY-WM6 is a UHF wireless system designed to work with DSLR camera, Camcorder, PC and more.
The BY-WM6 system features a bodypack transmitter, a camera-mount receiver, and an omnidirectional lavalier microphone. The receiver is built with mic and headphone output jacks. The bodypack transmitter includes a MIC jack and LINE IN jack.
What frequency do you want your system to support? Some come in VHF (very high frequency) systems, which are lowest-quality frequencies that compete with radio stations and the like. UHF (ultra high frequency) systems are a lot better quality, giving us higher frequencies that are less crowded for more room to operate with. For a nice little article on the difference, we like boya’s UHF vs. VHF systems post. You can also go with a digital system for the least likelihood of interference, but it lacks some high-powered frequencies.
The BOYA BY-WXLR8 is a UHF wireless XLR transmitter designed to work with BY-WM6R and BY-WM8R.BOYA BY-WXLR8 UHF wirelessXLR Audio Transmitter with LCD Display for BY-WM8 BY-WM6 Wireless Lavalier Microphone System.
Analog vs. digital? If you’re looking for an answer to the popular wireless debate, we will spell it out. Analog uses airwaves to get your sound through. On the other hand with digital systems, audio is converted digitally into a signal at the transmitter. Since you’re dealing with data now, interference and noise are basically eliminated. Higher quality analog systems are typically stated to have a little better audio quality but have more chances of interference due to the use of airwaves. I’d personally go with a digital system to ensure stability.