44 keys Plastic Remote Control 3.4V Black for Sharp Television

Plastic remote control 44 keys for PHILIPS television/ SHARP television/ SONY television

This is a regular infrared remote control. it can control you house television via infrared signal , the non-contact distance could more than 8-10 meters

Infrared light is actually ordinary light with a specific color, with a wavelength in the range of 760 ~ 1500 nm, which is lower than our visible spectrum, so we can't see this color with the naked eye. This is one of the reasons why we choose infrared light for remote control. We want to use it, but we are not interested in seeing it; Another reason is that infrared light emitting diodes are very easy to manufacture and very cheap. Although we humans cannot see the infrared light emitted by the remote controller, this does not mean that we cannot make it visible. Camera or digital camera can "see" infrared light