Size 2"x4"x1.3", permanantly mounted attachment plate with screws or industrial epoxy. Just wrap the tether around a fixed object and arm the alarm with the key. If the tether or alarm is tampered with, the alarm emits 120dB siren for 2 hours. Can only be disarmed with the key. Works on Plasma TV's, LCD TV's and LCD Computer Displays, LCD and DLP Projectors, Computers, Laptops or just about any device that needs security. The alarm is triggered only by cutting the tether, not by motion or sound, no false alarms guaranteed. 10' Tether, Alarm Key and Epoxy included. Excellent for Bars, Restaurants, Museums, Offices, Hotel Lobbies and Conference Rooms.