So, first day when I got my Touch controllers, they worked fine.
Next day, they didn't turn on, and I had to take the batteries out to reboot them.
Next day I got my third sensor, and the controllers worked fine.
Today they didn't turn on, and I had to take the batteries out to reboot them.
Could this be some weird Bluetooth problem, because they're on a shelf about six feet away from the headset when I boot the PC and don't receive a command to turn on?