URC MX-450 Infrared / RF Remote Control Number of Devices Supported: 18 Display: TFT Color LCD (176 x 220 Pixels) Range: RF: Up to 100 feet when used with MRF-260, MRF-350 or MSC-400 RF Base stations IR (line of sight): Up to 50 feet with fresh batteries Backlit Buttons: Yes Programmable: Yes Color: Black Battery Type: AA Battery Dimensions: 8 x 2.25 x 1.25 (H x W x D)