● Dimension:150mm*15mm*15mm ● Weight: 30g ● Image sensor : CMOS ● Color video with voice lets you clearly see who’s there & hear what they say. ● Place it up high or conceal it down low. With built-in rechargeable 1 battery so there’s no long cord for you to hide. ● Internal memory: 2 GB ,4GB,8GB ● Playback video on PC ● Video compression : AVI video format,352*288 ● Voice recording: Yes ● Internal memory: Yes ● Recording mode :continuous recording until memory is full or manually off ● Adaptor type: USB adaptor charging cable ● Battery type : Lithium-ion ● Record time : about 3h ● Battery use time : about 3h