KRT-4 is a cable retractor designed for installing in a meeting room, classroom or other AV site. KRT-4 extends a variety of common AV connector types and is easy to install and use. Provides Convenient and Easy-to-Use Connecting - Pull the cable to extend up to 1.8 m (5.9 ft) from the installation site; the cable automatically locks in position to the desired length. When finished, pull the cable again and it retracts into the housing.