1. Suitable for home and store anti-theft
2. Can be carried and reused at any time to protect your personal and property safety
3. Suitable for all kinds of doors and windows, no matter the size of the gap
4. With emergency lighting
5. Built-in 2 CR2032 button batteries, normal use for more than three months, standby time of more than 1 year
6. Dimensions: 73x35x11mm