The data sheet provides technical specifications for a green keyring standard card format electronic proximity fob. It uses MIFARE technology and an anti-forgery electronic chip that is compatible with access control family systems. The fob has dimensions of 2.4x1.2x0.3 inches and comes in a single pack that is 30mm tall, 63mm wide, 4mm deep, weighs 0.007kg and has a volume of 0.007dm3.