The Active Headphone Remote Plus (AHR-1 Plus) contains a stereo amplifier designed to work with any combination of high efficiency headphones with impedances between 24 and 600 ohms. The AHR-1 Plus version can be used as an individual headphone listening station with the FlexPhones system. Power, Program and Talkback audio is provided by the FlexPhones Master. The AHR-1 Plus can also be used as a stand alone headphone listening station (without the FlexPhones Master) if external 12 VAC power is provided. The AHR-1 Plus is equipped with 3.5mm (1/8") and 1/4" headphone jacks; level control; user configured utility; momentary pushbutton and LED indicator. Two rear panel RJ45 jacks are provided for connection via CAT5 cable to the FlexPhones Master. For standalone applications, two 1/4" T/R/S input jacks are provided to accept balanced or unbalanced stereo input audio.