Features:105dB high volume door window alarm with very loud siren in the compact body, clear to hear.Magnet and vibration triggered alarm sounds when window or door is opened.Made of premium ABS plastic, durable to use.Long battery life, eliminating the need to change batteries frequently.Alarm / continuous alarm / door closing reminder / doorbell four in one intimate design, suitable for a variety of use environments.Quick and sensitive response, convenience to use.Practical home use product, tiny and fashion, 24 hours protection for your home, office, shop, etc.Specification:Item Type: Door Magnetic AlarmMaterial: ABSColor: WhitePower: 2*AAA battery(not included)Working environment temperature: -10℃-60℃Working environment humidity: <80%Storage temperature: -20℃±70℃Alarm mode: alarm / continuous alarm / door closing reminder / doorbell four in oneWeight: Approx. 52gPackage list:1 x Door Magnetic Alarm1 x Manual .Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.