The Cotag IB911 Active Key Ring Tag is a pre-encoded active tag that offers hands-free operation when paired with Cotag hands-free readers. It is compatible with both passive and active cards, making it an ideal choice for secure access control solutions.Product Features:Sold as singlesRead range of 9 to 25 cm with Cotag proximity readersRead range of up to 85cm with Cotag HF500 reader