Product details Features: 1. New and improved design 2. Super loud 90 dB alarm 3. Easy installation just peel and stick 4. High environmental suitability and stability 5. Dustproof and insect resistant 6. Easily mounted using adhesive. Attach to window or door. Ideal entry warning for homes, apartments, mobile homes, rooms, offices, hotel rooms, garages, and more! 7. Magnetic sensor switch detects entry to help protect your home or office whether you are present or away 8. Warning door/window sticker included in package 9. Powered by 3 x 1.5V LR44 / AG13 button cell batteries (included) Specifications: - Sensor type: Alarm - Alarm type: Sound - Material: Plastic - Color: White - Size: 2.5 x 1.3 x 0.8 inch Package Included: - 6 x Magnetic Sensor - 6 x Magnetic Stick - 18 x LR44 Button Battery Entry Burglar Security Alarm Magnetic Sensor Alarm type: Sound Material: Plastic Color: White Size: 2.5 x 1.3 x 0.8 inch Sensor type: Alarm