Checks XLR, 1/4 inch., RCA, 1/8 inch., TT & MIDI cables for continuity and/or intermittent connections. Detects opens and shorts for each pin and holds LED reading so you know exactly where the problem is! Other features include test tone generator (+4, -10, Mic), phantom power detector, grounded XLR shield detector and cable wiring display. Two AA batteries required. Two-year warranty. Features include: · Checks XLR, 1/4 inch., RCA, 1/8 inch., TT & MIDI cables for continuity and/or intermittent connections · Detects opens and shorts for each pin · Includes test tone generator (+4, -10, Mic) · Phantom power detector · Grounded XLR shield detector · LED readout grid serves as handy cable wiring display · Two AA batteries required · Hang-able/resealable clear clamshell packaging · Cold-rolled steel housing, two-year warranty