"From Samuel Alexander, this motion-activated Christmas present snoop alarm is designed to sit on top of gifts and help deter curious hands before the big day. When motion is detected, it triggers a flashing light and a 90 decibel siren, making it a simple way to keep an eye on presents placed under the tree or in a hallway, spare room or cupboard. Ideal for households with children, it adds an extra layer of festive mischief-management without complicating your set-up. Button cell batteries are included, so it’s ready to use straight away. Key features Motion-activated alarm for placing on top of Christmas presents Flashing light activates when motion is detected 90 decibel siren Includes button cell batteries "