Feature: 1. Efficient Alarm: Anti theft mode will alarm for 30 seconds immediately when the door is opened, and will sound for 30 seconds even if the door is closed early. 2. Wireless Remote Control: Easy to operate through the remote control, convenient and fast, able to start and close the door and window alarm from a distance. 3. Multi Functional: In addition to the door and window alarm function, it also has anti theft functions to ensure family security in an all round way. 4. Durable Materials: Made of durable ABS materials, waterproof and dustproof, long term use without deformation, making it more durable. 5. Home Essentials: Simple installation, suitable for all kinds of doors and windows, does not affect the beauty of the home, is an ideal choice for home safety. Specification: Item Type: Door Window AlarmMaterial: ABSSound Pressure: About 130dB Ambient Humidity: <90% Working Humidity: -10~60°C Magnetically Triggered Alarm Battery: 1300mAh LR03 AAA dry battery x 2 (built in) Remote Control Battery: 200mAh CR2032 coin cell battery x 1 (built in). Package List: 1 x Door Window Alarm1 x Magnetic Stripe1 x Remote Control1 x Double Sided Tape1 x Manual