A silicone coating allows it to read a wide range of fingerprints accurately and rapidly regardless of placement angle. The U.are.U 4500 Reader utilizes optical fingerprint scanning technology to achieve excellent image quality, a large capture area and superior reliability. Its compact design conserves desk space in enterprises, and its professional, modern appearance looks elegant in point-of-sale environments. The U.are.U 4500 Fingerprint Reader is a USB peripheral perfect for individual desk top users, as well as multiple users in shared environments.