FeaturesEnsure confidentiality right on your desktopShreds documents, receipts, post-it notes, top secretes, and your silly worthless dreamsHandy powered letter openerUSB or battery powered for portabilityMakes a great gift for the paranoid delusional on your shopping listSpecificationsPower: Computer USB Port4 x AA Batteries (Optional)Dimensions: 5.8 x 6.3 4.8 (H x W x D)