PROFESSIONAL, 4-MODE OPERATION; PROGRAMMABLE NOTCHING SYSTEM; GROUND BALANCE MONITOR SYSTEM; TARGET ACCEPT/REJECT; UP TO 4-LEVEL IRON DISCRIMINATION; 8" WATERPROOF, INTERCHANGEABLE COIL; LCD TARGET NUMBER DIGITAL ID; 3-ZONE DISCRIMINATION; TOUCH-PAD SELECTION; INCLUDES 4" GOLD NUGGET AUXILIARY COIL; HEADPHONE JACK; 5-YEAR LIMITED WARRANTY