Today, Supra electronic KeyBoxes are used on over 2.3 million homes nationwide. As world technology advances, Supra delivers KeyBox solutions that integrate both old and new technology. IrDA (InfraRed) communication has been used for many years in TV remote controls. Today this technology has advanced and is now prominent in cellular phones, laptop computers, printers and personal handheld computers. The addition of IrDA to electronic KeyBoxes provides an open architecture that permits the use of many types of PDA devices. The "point and transmit" function allows agents to securely open KeyBoxes without the key ever touching the box.