Works as a 8GB USB drive (no driver is needed) Dimensions: 14cm x 2.2cm x 1.5cm (L x W x Diameter) . Support USB 2.0 and 1.0 Real time recording in AVI video format With over 8GB, you can freely record over and over for many hours straight. USB Plug & Play Compatible Video file size: >500KB per min Built-in rechargeable Battery type : Lithium-ion Adaptor type: USB adaptor charging cable Touch and record with one click Smallest camera in the world Voice recorder Smallest Pin-hole Camera made especially for spy use. Easy to use one touch record button lets you record any evidence instantaneously FC and CE Certified