30 to 60 seconds
Great Introductory video
First part shows how to turn it on and use the different algorithms/programs. Then it talks about seizures, drooling and other neurological issues.
Sanitize tuning fork with some rubbing alcohol or soap and water - or use rubber gloves. With tuning forks close together, insert into mouth. Push forks open outside of the teeth into the cheeks. Tilt Tuner slowly up and down, massaging the jaw muscles. Next, open jaw wide and close slowly 5-7 times. Before removing the tuning forks, squeeze the pads together and then remove. Sanitize again.