Key Digital KD-IRC3856 IR Receiver for IR Connecting BlocksKey Digital's KDIRC3856 is a compact infrared receiver that works with the KD IRCB204 IR central control and amplification unit or other IR repeater systems to receive infrared command signals from virtually all standard remote controls Specifications Wireless Technology Infrared Coverage 30 ft On Axis Physical Characteristics Height 1. 5" Width 2. 8" Depth 2. 8" Weight 8 oz Miscellaneous Compatibility Key Digital Products: KD IRCB204 Connecting Block