Wireless wave to activate door touchless, suitable for a variety of auto door openers, High sensitivity infrared, quick response. ^^Wireless transmission adopts 2.4 g wireless communication technology, with good frequency consistency and high wireless transceiver stability. ^^The induction distance is adjustable from 1.18 - 11.18 inch. It can be adjusted for different occasions^^WIFI function is available, Workable with Alexa&Google assistant and Phone APP^^Adopts infrared modulation and demodulation, which is not easy to be misjudged by interference