I've played guitar for a long time and ive always loathed all of these cords. I'd seen these wireless transmitters but they're always more than I'd like to spend so when i had a revelation on how to make one for $30 i just had to share it with the world.
you will need only a few things
1. a pair of cheap walkie talkies that dont have a timeout but do have noise cancelling
2.a guitar cord of decent length
3. a soldering iron/solder
4. universal screwdriver
6. donut of your choosing
7. and, of course, DUCT TAPE