About Toeeson Window Door Alarm: Toeeson New Type Wireless Window Door Safety Contact Magnetic Security Alarm. Portable enough to take with on business trips and vacations, keep yourself and your property safe and security.With low power indication function, easily to replace your LR44 batteries with screw. Perfect for preventing kids and babies going out the house without notice, protecting your home or office whether you are in or out. The intelligent furnishing with handsome, decent appearance, also be economical and practical. Magnetic sensor switch detects entry.Easily mounted to windows or doors with included double sides adhesive tape, no tools required. Other great uses are for your cupboard, shed, garage, toolboxes, etc. to prevent potential wandering sneakers.Features:1.New and high quality2.Environmental economy, high temperature resistant, corrosion resistant3.Convenience in installation4.Super environmental suitability and stability5.Dustproof and insect prevention6.Easily mounted by adhesive. Tape to window or door and done 7.Warning door / window sticker is supplied free in package8.Operated by 3 pcs LR44 batteriesSpecifications:1.Sensor type: Alarm2.Alarm type: sound3.Material: plastic4.Color: Silver+Black5.Size: 2.9" x 1.5" x 0.4" 6.Weight:38gToeeson 2019 New Upgraded Window Door Alarms are exactly what you are seeking for!Contact Us:Log in Amazon account>find the order>click "Get help with order">choose specific subject>click Ask Seller