Apple HomeKit compatible wireless security system that comes with everything you need to get started. The LyricPK10-AT is one of the most affordable ways to build a security system for a large home. A built-in WIFI receiver and the AT&T 3G cellular card ensures maximum safety. 10 Door and window sensors, 1 motion detector, and the Lyric security system itself. The included wall plug and 8-foot cable will make installation a breeze. You won't find a better value. You won't get better support. Get the same system that the professionals install.