The GE Personal Security Window/Door Alarms provide a simple-to-use, cost-effective security solution to protect you and your family against home invasions. The 120 dB 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. 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). Each window alarm features an on/off/chime switch for easy operation and a low-battery test button for checking battery life. The GE Personal Security Window/Door Alarms are perfect for homes, apartments, dorm rooms, offices and much more.