Features: Brand new !#!amp!*! high quality When the body is nearit will automatically start the alarm The highest sensitivity in the range of 4-5 meters Put the alarm cat or paste in a certain height away from the body within five meters within the angular range 120 degree left and rightas long as people or animalswaying back and forth in a very short timeinduction start Connectivity can listen to a location within 15 meters of the situationthe sound is very clear Remote-control setting: A. Send \"0000\"to the SIMcard number after a successful turn off this feature B. Send\"1111\"is open induction Operation frequency : 850MHZ900MHZ1800MHZ1900MHZ Specifications: Original box:Yes Size:about45*30*14mm(product size) Working current:below 10mA Idle current:below 0.05mA Color:black Net weight:141g Packing Content: 1 x Alarm 1 x RYD Adapter 1 x USB Cable