Product Details  hidden camera, wireless pen camera, usb pen video, video pen  Model No.: Pen 404-4GTechnical SpecificationUSB Thumb Drive : Built-in 4GB MemoryVideo Recording:AVI FormatCamera:JPEGMP3 Player:N/A Size & WeightNet Length (mm):155Net Width (mm):20Net Thickness (mm):12Net Weight (g):40Package Size ( L / mm):154Package Size ( W / mm):129Package Size ( T / mm):30Full set package weight (kg):0.136Package ContentsUSB Pen:1 unitAC power adaptor:1 unitUSB Cable:1 unitUser Manual:1 unitGift Box:1 unit