Whether you have a quirky sense of humour, want to show your dark side or are decorating for Halloween, nothing is a better accessory than the Glowing USB (Universal Serial Bus) Spooky Skull! The skull detects movement & will scream when someone comes near. You can have a lot of fun scaring people at home or at the office. You can even use it as a makeshift computer security device. Just plug the USB (Universal Serial Bus) skull into an available outlet & set it on the desk to do its work. It will glow softly & eerily until someone walks by then it will screech for some fun humour. If you like novelty items, this one is for you & it also makes an ideal gift for friends & co-workers. Each USB (Universal Serial Bus) Spooky Skull comes with: USB (Universal Serial Bus) Skull with built in motion detector Plug & Play, no software required One metre USB (Universal Serial Bus) Cable 11.5 cm x 7 cm x 8.5 cm