(InfraRed remote control) A handheld, wireless device used to operate audio, video and other electronic equipment within a room using light signals in the infrared (IR) range.
(Radio Frequency remote control) A handheld, wireless device used to operate audio, video and other electronic equipment using radio frequency (RF) transmission.
(Blue-Tooth remote control) A handheld, wireless works the same way as Infrared remotes, but instead of sending light pulses, they send the codes to the device via radio waves.
