XceedID proximity technology is an easy, convenient access control solution. Proximity technology, which operates on 125 kHz frequency, is easily integrated into existing legacy proximity systems or ideal for a new installation. Proximity credentials can easily fit into a wallet or may be used as a strapped or clipped badge. From highly durable clamshell-style cards, to basic ISO style cards, to keyfobs and adhesive patches, XceedID offers several different form factors to meet the needs of many different customers. Proximity credentials by XceedID are compatible with all industry leading proximity readers and are also completely ISO compliant. These credentials also have a passive design, requiring no batteries or maintenance for the life of the card.