0g means pen camera without SD card<br />4g means 4g SD card <br />8g means 8g SD card<br />Details:<br />100% brand new and high quality<br />Up to 32GB storage via micro SD TF card (not included).<br />USB attachment to make it easy to transfer to computer.<br />Built-in recharagable battery.<br />Can be used as a normal pen.<br />Video record as well as taking still pictures.<br />Video resolution: 720*480 30fps AVI format.<br />Picture resolution: 1280*960 JPG format.<br />Comes with user manual and USB data cable.<br />Specification:<br />Image Sensor: 1/4" Color CMOS Sensor<br />Resolution: 720x480<br />Photo: 1280x960 JPG<br />Button<br />-ON/OFF， Video， Photo<br />Recording Space<br />-Video : About 500MB/30Minutes<br />-Photo: About 200KB/pcs<br />Power<br />-Rechargeable Internal Lithium Ion Battery<br />-Battery Charging Time: 3-4 hours for a full-charge (Via USB cable)<br />-Charging Voltage: DC 5V<br />-Battery last time: about 60 minutes<br />Time/Date Stamp: Yes， Embedded<br />Indicator: Green<br />Video Storage: MicroSD Card up to 32GB (Not included)<br />USB cable for charging/data transfer<br />Compatible System: No drivers required if the operating system is Windows ME/ 2000/ XP/ Vista or above.<br />Built-in Mic<br />USB 1.1 or 2.0<br />Dimensions (L x H): 148 x 14 (mm)<br /><br />Package includes:<br />If you just buy the pen without SD card:<br />1 x Pen Camera (Not include Micro SD Card)<br />1 x USB Cable<br />1x User’s manual<br /><br />If you just buy SD card without pen:<br />1 x SD card<br /><br />If you satisfied with it， please give 5 star.<br />If you feel your shopping experience with us was anything less than FIVE STAR ， Please contact us immediately! We will give you a satisfactory answer.