The GE Personal Security Window/Door Alarm 5-pack provides a simple-to-use, cost-effective security solution to protect you and your family against home invasions. The 120-decibel alarms are loud enough to make a would-be intruder think twice about entering through your doors or windows. The alarms are also extremely easy to use and operate. The window/door alarms feature a contemporary design with easy access buttons and controls for simple operation. This straightforward concept makes using the GE Personal Security Window/Door Alarms intuitive, no matter what your technological skills may be. With no wires required for installation, protecting any window or door in your home is as easy as attaching the alarm to your window or door with double-sided tape (included). The window alarm features an on/off/chime switch for easy operation and a low battery test button for checking battery life. The 5-pack is perfect for homes, apartments, dorm rooms and offices.