The Twitch Switch, model 1061, is an eyebrow switch designed for use by individuals with severe physical, neurological, or upper extremity disabilities or spinal cord injury. This switch is activated by a small muscle movement such as wrinkling the forehead or raising an eyebrow; the amount of muscle movement required for activation can be adjusted for increased or decreased movement. This switch operates in latching, momentary, or timed mode. The latch mode operates an attached device until the switch is activated a second time. In momentary mode, the attached device is operated until the switch is released. In timed mode, the attached device remains activated for a set period of time, from one to 120 seconds. POWER: Uses one nine-volt battery. OPTIONS: A set of three extra sensors is available.