Fisher Metal Detector Black Standard. The F11 has superfast retune speed with excellent target separation and easy to use Discrimination Sensitivity Notch and pinpoint. Easily identify targets with the 9-Segment Target Categories enhanced with the 4-Tone Audio-ID system. Target depth is displayed graphically both in real time and in pinpoint. Get your F11 and discover history now Specifications for Fisher F11 Metal Detector: Manufacturer: Fisher Included Accessories: Standard Water Resistance Level: Waterproof Coil Finish: Black Battery Type: 9v Battery Life: 20 - 25 hours Battery Quantity: 1 Weather Resistance: Waterproof Features of Fisher F11 Metal Detector 3 Modes of Operation: JEWELRY COIN ARTIFACT 9-Segment Visual Target-ID 4-Tone Audio-ID Pinpoint 6 Levels of Adjustable Sensitivity and Volume 7-Inch Concentric Elliptical Waterproof Searchcoil Ultra-lightweight Only 2.3 lbs. Operational Weight Operating Frequency 7.69 kHz Package Contents: Fisher F11 Metal Detector Fisher F11: F11 Metal Detector Black Standard