Hyun Joung System QUPSAVERCALL-1000 is a DIY wireless security system that helps protect your home and belongings. It has a range of up to 2,500 feet, making it suitable for houses, apartments, and small businesses. With no hard-wired installation required, it's easy to set up using the included screws or double-sided tape. The LCD display and simple programming make it user-friendly, and all settings are password-protected for added security.