This is a personal siren/flashlight keychain by JWN.
The keychain is silver in color and features a black insert and a button on the front to control, and the flashlight's low and high beam capabilities.
The flashlight/alarm device measures about 3" without the chain and ring, and about 5" long, 1.5" wide, and 1" high. Instructions for operation are included.
This item is in pre-owned condition with a small scratch on the back.