JAMES is a portable, switch-activated environmental control unit designed for use by individuals with mobility, severe physical, or neurological disabilities or spinal cord injury. This unit offers direct access or row/column switch scanning to operate lights, appliances, beds, doors, and other X-10 and infrared controlled devices. The unit's liquid crystal display (LCD) allows for visual recognition of the 248 functions, including temporary or permanent programmable macros and telephone access. The casing is composed of a durable, water resistant and shatterproof plastic. POWER: Uses battery or wheelchair battery. DIMENSIONS (LxWxH): 7.5 x 3.5 x 1.25 inches. WEIGHT: 16 ounces.