Key Features Whistle Key Finder Elegant design with strong key ring Simply whistle and this key finder will flash and beep Material: plastic and metal Powered: Replaceable button cells (Not Included) Dimension: 5 x 2.6 x 1cm Whistle Key Finder Elegant design with strong key ring Simply whistle and this key finder will flash and beep Material: plastic and metal Powered: Replaceable button cells (Not Included) Dimension: 5 x 2.6 x 1cm