CD550Pro - PROFESSIONAL BUG DETECTOR WITH VOICE VERIFICATIONOur latest detector is the latest in top of the line portable technology. Boasting all the features you would find in larger, more expensive units, this portable unit will not let you down. Designed to locate bugs hidden in the surrounding area, this particular detector features audio verification, allowing you to help eliminate false positives by listening in. Features Audio verification Adjustable Sensitivity Built in rechargeable batteryTechnical