【Safe and Secure】 This door alarms can instantly detect any movement in your door or window. Now you can keep intruders out with our 100db, super-powered alarm system. The anti-theft design may have a slightly loud volume for children, so please remember not to scare them. | 【Multifunction】Our door alarms for home security system features intuitive and easy-to-use functionality. The OFF/CHIME/ALARM switch lets you customize sound and alert preferences to your liking. Once the alarm and magnet are separated more than 0.78 inches (2cm), the alarm siren keeps going until you close the door. （Note: Align the arrows on both the alarm and the magnet and ensure that the gap does not exceed 2cm when closing the door） | 【Easy to install】 The compact alarm system can be easily mounted with adhesive tapes. The door alarms for kids safety can prevent children from sneaking out, and intruders from breaking in. Whether it’s your children, home, garage, mailbox or businesses - we want to help you stay secure.（Note: Make sure the surface for mounting is clean and dry.） | 【Multiple Scenarios Usage】Door alarms for kids safety can also be used as a door alarm, pool door alarm, garage door alarm or sliding door alarm. Window alarm sensors are powered by four long-lasting LR44 batteries (included), If the alarm isn't working, check if it's in OFF mode or if the batteries need replacing. | 【Portable & 36-MONTH Warranty 】This VOXON window alarm is designed to be lightweight and mini, making it easy to carry in any backpack when you go out. Now you can live your life knowing your home, belongings and loved ones are safe. It is the perfect solution for apartments, mobile homes, offices, hotels, garages and so much more.We provide a 36-month worry-free warranty with our friendly customer service. If you have any questions please feel free to contact us.