A  pen of normal size & weight can record anything you see and hear into any wireless receiver! No need any cables to connect with them.Just hold it at hand,or hang it into the pocket randomly, or place it anywhere you like, it begins to transmit color video with perfect sound to 300 feet away! And the pen writes too Just slide the pen clip to expose the camera pinhole, and twist pen bottom into writing state, it begins to work! Moreover, it comes with solar charger, which can offer power supply to the pen at anywhere and support super long working time up to 9 hours! It’s ideal for the security personnel, law enforcement agencies and journalists to fulfill the undercover assignments, like evidence collection, hidden investigation and surveillance, etc. It is also great as a toy for hobby enthusiasts, as body worn solutions.