The Eye Blink Switch is easy to position with unique mounting; just aiming the sensor at the eye will allow the user to control communication devices, toys, or computers. Controls give momentary, timed (1 to 120 seconds), or latched output. Internal circuitry can be set to activate with each eye blink or with every double eye blink to ignore normal eye blinking. An adjustable holder easily mounts to most eyeglass frames or head bands. Eyeglasses not included.