I teach as an adjunct and was very disappointed when my classes were ready to start in January and I hadn't been given new code books. If you have to pay for your own code books, these are priced the best.

Using the high frequency function of the light therapy instrument on my shoulder, I was able to fully lift my extended arm above my head in about thirty minutes after its application. I had spent several weeks of trying other relief methods for my shoulder joint with very limited success. I added heat when treating muscles for soreness and tightness and got relief within about fifteen minutes. The instrument is easy to use. I use it while working on my computer.