I have tested a number of wireless guitar products and the Sennheiser xs Pedalboard is my new favorite. It does something that other wireless guitar systems do not. The receiver doubles as a tuner. This may sound like a small detail, but it is big. It allows the wireless receiver to be mounted to the pedalboard while not taking up any more room on the board as well as not needing to be charged. Also, the wireless transmitter can be charged from the tuner/receiver when not in use. No more running out of batteries, no more dongles on the side of the pedalboard. It really is a great wireless setup. I plan on doing a full "real world test" video in the future after a month of use, but so far this is my favorite wireless guitar system yet.
In this video, I test the Sennheiser wireless pedalboard with my acoustic Taylor 314ce, but it will work on any guitar with a pickup, acoustic or electric.