The Vanderbilt IB928 V24246-D5203-A1 cards are clamshell cards equipped with a lithium battery that allows for hands-free functionality when paired with Cotag hands-free readers. These cards offer a read range of approximately 102cm when used with Cotag HF500 readers and a range of 12-32cm when used with Cotag proximity readers. Sold in packs of 10, the card number is printed on the back of each card.Hands-free functionality with Cotag readersRead range of 12-102cmSold in packs of 10