Works as a USB drive (no driver is needed) Colour video recording Support USB 2.0 backward compatible Length Size: 14.5 cm, Diameter: 1.5 cm Absolutely perfect for use as a hidden cam, spy cam, etc. Complete Concealment Real time recording in AVI video format Format: AVI video format, 352*288 pixels Video file size: >500KB per min Recording mode continuous until memory is full or manually switched off Built-in rechargeable Battery type : Lithium-ion USB Plug and Play all your secretly recorded files 20g