USB Computer Vacuum. Simply plug directly into the USB port to connect the vacuum cleaner (no batteries needed!) Bristle brush and keyboard cleaning attachments included. On/Off switch for the light and motor. Built in LED light allows you to clearly focus on the cleaning area. Regular and Turbo power settings. Silver plated area is approximately 2.25", tapers 1.5" to .5" wide. Entire unit is 6" long with attachment.