Features: 1, Tiny size makes it ideal for a variety of uses. 2, It's great for use as a hidden cam, spy cam , etc. 3, Real time recording in AVI video format 4, Color video with voice lets you clearly see who's there & hear what they say. 5, Place it up high or conceal it down low. With built-in rechargeable battery so there's no long cord for you to hide. 6, Internal memory:1 GB , 2 GB, 4GB 7, Playback video on PC 8, Record time : up to 5h 9, Battery use time : about 3h for one full charge Specifications: Video compression: AVI video format, 352*288, 640*480 Vioce recording: Yes Internal memory: Yes Flash: 1GB , 2GB, 4GB Video file size: >500KB per min` Recording mode: continuous recording until memory is full or manually off Adaptor type: USB adaptor charging cable Battery type: Lithium-ion Packing : Including Mini recorder,USB cable, CD driver Color Box: 14x13.6x3.5cm, 0.3kg/pc