The BUDDY .. The All Headset Brand Training Tool $59/unit The Buddy – Known As The Worlds’ Best Training Tool. 2 mutes, both sides have receive and transmit. Trainee or trainer can choose to be on or off the call at any given time. No wires to tangle. It’s so easy, just one short pigtail to hook up to your phone or amplifier. Once you use the “Buddy” you’re hooked… all headset brand friendly and with any phone system.