The Serene Central Alert Home Alert System CA-360 Alarm Clock with Bed Shaker is a reliable and effective monitored alert system designed for individuals in need of emergency assistance. This system includes a base station and a bed shaker, both made of durable ABS plastic in a sleek white color. The CA-360 model from Serene Innovations is designed for ease of use and is ideal for individuals looking for a reliable alert system to ensure their safety and well-being. Made in China, this product helps provide peace of mind for those in need of added security. Does not include door knocker but does include a phone dock by serene aswell.