"During my many years of work with persons that have severe cognitive challenges, and others with significant physical impairments requiring use of a switch, I have searched for the ultimate cause/effect device. I created it with the CooperCar, but the WakerShaker is a close second. It is is far more convenient (5" tall and 2" wide), not to mention, far less expensive. Do not take WakerShaker lightly. Yes, it's a simple switch modified massager (vibration device), but you simply will not get better, quicker results about what a switch can do. If you're trying to teach cause/effect training, or just letting a user learn about a new switch/position, the WakerShaker is fun! If you are working with a person that needs to understand the power of a switch, you need WakerShaker." RJ (Switch is optional, but 2 AA batteries are included)
