•        All-in-One Audio Diagnostics – Combines a variable tone generator (13Hz–10,000Hz) and a 9V speaker popper for quick polarity testing, system level setting, and crossover verification.
•        Safe & Accurate Troubleshooting – Outputs 0-8V adjustable tone to safely test speakers, identify wiring issues, and verify connections without damaging audio components.
•        User-Friendly & Efficient – Features simple tone/level control knobs, auto shutoff for longer battery life, and instant visual speaker polarity confirmation.
•        Professional-Grade Tool – Ideal for installers, technicians, and audiophiles for precise audio system calibration, connection checks, and general troubleshooting.
•        Wide Compatibility – Includes RCA and alligator clip connectors for easy integration into home theaters, car audio systems, PA systems, and studio monitors.