New, unopened useful gadget. I found it while organizing the storage shed. I forgot that I bought two. I'm finding one very useful attached to my TV remote control. Details: Function: A keychain-type product that alerts you to its location with sound and light when you clap your hands three times. Usage: Attach it to things you often lose, such as car keys, house keys, and remote controls. Features: Comes with an LED light. Battery CR2032 is included.