Nextronics IR Remote Control Extender Repeater System (25ft with power supply) Extra long cable lengths, 25 ft between receiver / emitter Newest Dual Band Technology 20-60KHz, works on most home theater devices. Includes USB power supply, or can be used with existing USB port on TV, Blu ray player, cable box, etc. New 2018 Extended Range technology provides for long ranges between receiver and remote control. Includes 1 year replacement warranty, your satisfaction is guaranteed Works with devices in the 20Khz to 60Khz frequency range. This range covers most home theater devices CFL and sources of bright light will cause interference. Nextronics Infrared Repeater XL has 25ft emitter cable lengthfor convienient home theater installations. USB cable can be plugged into most standard 5VDC USB ports. New XLsensor technology allows for remote signal reception at many different angles. Long range remote reception of up to 30ft from receiver.