1. Low-consumption design,which makes it can work long time. 
2. Remote control operation makes it easy to operate. 
3. It has the function of arm, disarm, emergency alarm and doorbell. 
4. 105dB ultra-loud alarm design, effectively frighten thieves who want to break into your home. 
5. Magnetic sensor, door and window motion detector. 
6. Can easily mount to windows or doors with included double sides adhesive tape, no tools required. 
7. Door bell function, reminding people in house open door for you. 
8. Specially design for rental apartment, villa, family security. 
9. Help to keep yourself and your property safe and security. 
10. Magnetic Sensors Powered by 2 x AAA alkaline batteries (not included). 
11. Remote Controller Powered by an 12V/27A alkaline batteries.