I bought this for my home, but I'm selling it because I'm not using it. Photos 11 and onward are reference images. Just stick it on the window! Easy crime prevention! Model number: ASA-W13-N4P Product Features: ● This is a dual-detection type that sounds an alarm when glass is broken or impacted, and when the window is opened. ● The impact detection only detects glass breakage or impact, so there is no need to worry about malfunctions due to vibrations caused by rain, wind, or the passage of large vehicles. ● When glass breakage/impact or window opening is detected, a loud alarm (approx. 90dB/50cm) will sound for about 25 seconds. ● Easy installation, just stick it on with the included double-sided tape. Will be sent via postal mail.