Microprocessor controlled 6-in-1 professional cable tester with 3 modes: Cable, Installed Cable Test and Tone Test mode, accepts all standard connectors: XLR, TRS (1/4”, 1/8”, TT) RCA and MIDI, super easy operation with intuitive LED display, continuity check and flash detection, phantom power and ground shield check, test tone generator: 1 kHz or 440 Hz at +4 dBu, -10 dBV or -50 dBV, works with two AA batteries (not included), includes belt clip.