This security system includes a base system, 4 entry sensors, a motion detector, a remote keychain, and a yard sign. It is compatible with Google Assistant, Alexa, and other smart home devices. This system is not compatible with ADT professionally installed systems or 5G networks and works only in the United States. Price drops from $199 to $25.76 when you apply the coupon code "VIPJULYTAKE8" at checkout. Shipping is free.