The 3.5mm (1/8 inch) modular jacks allows users to connect to headphone, microphone, infrared repeater devices, sound cards, and mp3 players from remote locations. The keystone jacks may be used in two or three conductor applications. Rear push-pin design allows for simple, fast connections to UTP cable or any 22-24AWG wire. This device is intended to provide easy installation of female 3.5mm modular jacks into any wallplates and Decorex inserts.