Fisher Weatherproof Metal Detector Black Standard. It has superfast retune speed with excellent target separation and easy to use Discrimination Sensitivity Notch and Pinpoint features. Fe-Tone adjustable iron audio allows you to set the volume of ferrous targets lower than the volume of non-ferrous targets for increased clarity on desirable targets. GROUND-GRAB Computerized Ground Balancing and Manual Ground Balance make it easy to tune the F44 to the soil you are hunting in. Easily identify buried targets with the 9-Segment Target Categories and a 0-99 numeric Target-ID enhanced with 4-Tone Audo-ID System. Custom made allow users to set their own tones. Rain or shine the F44 excels when most detectors can't Specifications for Fisher F44 Weatherproof Metal Detector: Manufacturer: Fisher Included Accessories: Standard Finish: Black Battery Type: AA Alkaline Battery Life: 25 - 30 hours Battery Quantity: 2 Features of Fisher F44 Weatherproof Metal Detector Operates on 2 AA Batteries (25-30 Hours) Fe-Tone (Adjustable Iron Audio) Ground Grab Computerized Ground Balancing Manual Ground Balance 9-Segment Visual Target-ID Large 2-Digit 1-99 Numeric Target-ID Iron Identifier Icon Backlight for Low Light Conditions 5 Modes of Operation: JEWELRY COIN ARTIFACT CUSTOM ALL METAL Pinpoint 20 Levels of Adjustable Sensitivity 20 Levels of Adjustable Volume 4-Tone Audio-ID Non-Volatile Memory Saves Settings 11-Inch Concentric Elliptical Waterproof Searchcoil Ultra-lightweight only 2.3 lbs Operating Frequency 7.69 kHz Package Contents: Fisher F44 Weatherproof Metal Detector Fisher F44: F44 Weatherproof Metal Detector Black Standard