This active card is compatible with the DTRR series of long-range readers. With a read range of up to 15m, there is no need for the user to present the card directly to the reader; just having it in their pocket or attached to a lanyard is enough to grant them access. This is ideal and convenient for care homes, stockrooms, and other environments where hands-free is easier. The chargeable battery inside the card makes it more durable for use over a long period of time.