These night lights are activated wirelessly when you step on the mat, ideal for illuminating the way to a bathroom, telephone, or doorway at night without disturbing a sleeping spouse or stubbing your toe. When stepped on, the floor mat has its own built-in bright LED light that illuminates, and it uses a 433MHz wireless signal to turn on each remote light up to 100' away. The remote lights are turned off when the mat is stepped on a second time; the built-in mat light and remote lights gradually dim before turning off completely. Lights fit on tables, or attach to doorknobs or closet bars using an attachable hook. The floor mat can control up to four remote lights and uses three AA batteries (three AA batteries required for each night light). Includes floor mat and one night light. Floor mat operates with four wireless channels, allowing another family member to use another mat on a different channel to control a separate array of lights. Floor mat: 22" W x 18" D x 1 1/2" H. Night lights: 2" H x 5 1/2" Diam. (3/4 lb.)