Feature: 1. Wireless remote control, arm or disarm, is small in size and easy to operate, you will finish installation within a few minutes. 2. Low power consumption allows you use it lasts for 1 year, very environmentally friendly and you can change the battery freely. 3. Low battery reminder with LED indicator, 120dB super loud alarm of the system helps you to scare away thieves. 4. The alarm system can be easily installed on windows or doors with the included double‑sided tape without any tools. 5. Equipped with doorbell function to remind someone in the house to open the door for you. Specification: Condition: 100% Brand New Item Type: Alarm System Material: Plastic Color: As Pictures ShownOptional Type:Single Remote Control, Dual Remote Control Rated Working Voltage: 9 V Quiescent Current: ≤0.02 M A Transmitting and Receiving Frequency: 315 MHZ The Effective Distance of Remote Control: ≤ Approx. 20 meters / 22yd Alarm Sound Level: ≥120 d B Operating Temperature Range: Approx. -15℃- +80℃ Remote Control Battery: Button Battery, Model 2032, Capacity 75 Ma(shipped with built-in battery) Instructions: Set anti-theft: Short press the setting button, the alarm horn "Bi" will beep once, and the indicator light will flash once. After 3 seconds, it will enter the anti-theft alarm state. Remove the anti-theft alert: In the anti-theft alert or alarm, short press the key, the indicator light flashes twice, and the horn "Bi, Bi" beeps twice to release the anti-theft. Vibration triggers an alarm: If the armed state is triggered by vibration, the indicator light flashes and the horn beeps for 30 seconds. Adjust vibration sensitivity: Press and hold the button for 5 seconds, the horn will beep continuously, and the current sensitivity level will be indicated by the number of times the horn will beep continuously. (Among them: the fifth gear is the most sensitive, and the first gear is the dullest). After adjusting to the gear you are satisfied with, press the key to confirm. (Note: The factory setting is the third gear). Package List: 1 x Alarm System2 x Remote Control1 x Manual Note: Note:1. The remote control is precision manufactured.Do not fall heavily or get wet. Avoid water, high temperature and violent vibration.2. When you find that the distance of the remote control becomes shorter or the indicator light becomes dim, please replace the battery.3. Please keep your remote control properly.