Looks just like a regular pen but it has a tiny camera and microphone just above the pen clip to discreetly capture high definition video, audio or still photos. The files save to a microSD card (not included), which you can later transfer onto your computer. Ideal for taking electronic notes at your next meeting or protecting your legal rights by capturing a video or audio record of an event. Photos and recordings are triggered using the push button located on the top of the pen, and the internal Li-Po battery provides up to 70 minutes of recording. Connect to a USB port to charge. This pen is not designed to be used as a pen full time, it can be used while covertly recording. The ink is not replaceable.