With a comprehensive connection set that includes XLR, 1/4, RCA, 1/8, TT and MIDI connectors, the Swizz Army can be used to tell the exact wiring of any cable or adaptor. The device clearly shows continuity, opens and shorts, even intermittent shorts! It also features test tone generation, phantom power detect and grounded XLR shield detect. Runs on 2 AA batteries.