Mark wants to know how to connect a Neewer XLR mic to a laptop. Leo says that if it's a condenser mic, then it'll also need power. So an adapter won't really help. Leo recommends a Focus Rite Scarlet to power it and converter it to USB. However, some like the Newer XLR mic cannot work with Mac computers. That's only a $20 mic, and you'd be better off getting a USB compatible mic that works with any computer. If it's only for video conferencing, then Leo recommends the Blue Yeti or the Blue Snowball. It's decent.
Todd wants to know why Leo chose the Heil PR40. He's planning to do a podcast and wants the best mic he can get for the money. Leo says that Bob Heil is a legend in the music industry, having created the quadrophonic sound for the Who, and the Vocoder for Peter Frampton. Bob invented the Heil PR40 originally for HAM Radio, but it's gotten very popular with radio and podcasters. Leo likes how his voice sounds. The PR40 is also a dynamic mic; it doesn't need phantom power or requires isolation like a condenser mics.