Motion sensor alarm: The PIR motion sensor has an intelligent detection with a range of 6 m - 8 m, can send a flash and an alarm of up to 100 dB when motion is detected. You can operate it with the infrared remote control [should show the fasted window of the PIR motion sensor] and the remote distance is up to 8 m Three modes to choose from: 1. Alarm mode - - It will sound for about 20 seconds when you select this mode 2. Welcome mode - - It emits the set sound as soon as the movement is detected every time 3. Smart mode: it emits the set sound when motion detects, the next detection sound can only be played after the LED light is off, not like the welcome mode, it will emit the sound every time Various RingtonesIt has 24 voices and 4 selectable volume levels, including "Welcome" in 11 national languages and 13 other melodies (welcome mode and smart mode can choose the voice according to your wishes). The "Welcome" language includes: English, English, French, Russian, Spanish, Portuguese, Portuguese, Thai, Japanese, Korean, Malay, Arabic Package Content1 x Infrared Remote Control, 1 x PIR Motion Sensor Alarm (Battery Not Included) Easy to install: no wiring required. The patches and adhesive screws come with the motion sensor alarm