Product Name: Vibrating Door And Window Alarm Origin: Shenzhen, Guangdong Model: MSA-816 Power Supply: 4.5 (V) Ambient Temperature: -2070C Scope Of Application: Doors, Windows Color: Silver Specifications: 1. New vibrating door and window alarm, high decibel vibration induction burglar alarm, suitable for home, hotel, company and other scenes. 2 alarm installation is simple, do not need tools, tear the protective film can be pasted on the door or window, easy to use. 3. Turn on the switch, the light flashes, 5 seconds later start to work, when the product detects vibration, it will send out a 130db alarm to protect your property from thieves. 4 alarm with low power LED indicator light, when the voltage is lower than 3V, the indicator light automatically flashes. 5 alarm light and small, does not take up space, easy to carry, anytime and anywhere can be installed. Package Included: 1*Alarm