Specifications:Works as a 8GB USB drive.USB plug & play compatible.Easy to use \"One Touch\" record button.Built-in rechargeable lithium-ion battery.Real time record any video and audio evidence instantaneously.Smallest fully functioning digital video recorder (DVR) in the world.Type: Watch with CameraColor: BlackWaterproof: NoDisplay: AnalogMovement: Quartz(Battery)Band Material: Faux LeatherCase Material: Alloy、 GlassVideo Format: AVIVideo Code: M-JPEGVideo Resolution: 640x480Photo Resolution: 1280x960Video Frame Rate: 30FPSMemory: 8GB ( Built-in )Media Playing Software: Attached software of the operating system or mainstream audio and video media playing software.Picture Format: JPGImage Proportion: 4:3Battery Capacity: 280mAhWorking Time: 115 MinutesCharging Voltage: DC-5VInterface Type: Mini 4Pin USBStorage Support: Nand FlashBattery Type: High-capacity Lithium PolymerSupported System: for Windows Me/2000/XP/2003/Vista、 LinuxCase Diameter: 4cm/1.57" (Approx.)Case Thickness: 1cm/0.39" (Approx.)Total Length: 24cm/9.45" (Approx.)Notes:Due to the light and screen setting difference、 the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.The 3 sub-dials on the watch are all just for decoration.Package Includes:1x 8GB DV Watch (with Built-in Lithium Battery)1x USB Cable