notice :this fan is not a real clock and you can not program it.Colors for selection:blue，red fan the green one is out of stockPacking Weight:200gPackage contains:usb flash word fan one pieceMaterial: PlasticDetailed Size: 25cm(Length)×9cm(Height)×2cm(Thickness)product type: mini flash word fan brand name : usb cool gadgets fanEmbellishment: word and clock styleOpen Method: Usb socket connectionBest Match: Desktop PC，Laptop