Bounty Hunter Discovery 2200 Metal Detector. Discovery Metal Detectors by Bounty Hunter offer multiple modes for detecting different types of metals and enough power to detect deeper and more accurately than most metal detectors. The Bounty Hunter Discovery Metal Detectors operate on two 9-Volt batteries and are designed to be lightweight and ergonomic for easy handling and comfortable use. These Bounty Hunter Metal Detectors come equipped with a 1/4" headphone jack compatible with most headphones for privacy while treasure hunting. In addition Bounty Hunter equips all their handheld metal detectors with a preset ground balance that neutralizes the response to mineral content in the ground. The following models of Bounty Hunter Discovery Series Metal Detectors are available: Disc11: Bounty Hunter Discovery 1100 Metal Detector Disc22: Bounty Hunter Discovery 2200 Series Metal Detector Disc33: Bounty Hunter Metal Detector Discovery 3300 Specifications for Bounty Hunter Discovery: Feature Disc11 Disc22 Disc33 Coin-sized Object Detection: 6" deep 8" deep 10" deep Large Object Detection: Up to 2' Up to 3' Up to 5' LCD: Yes Yes Yes Operation Status (non-menu driven): Yes Yes Yes Depth Readout: No Yes No Running Depth Graph: Yes No Yes Adjustable Sensitivity: Yes Yes Yes Knob Control Interface: Yes No Yes Touch Pad Control Interface: Yes Yes Yes Visual Battery Life Indicator: No Yes Yes Low-Battery Indicator: Yes No No Search Modes: 2 2 2 Discrimination Mode: Yes Yes Yes All Metals Mode: Yes Yes Yes Transmit Frequency kHz: 6.6 6.6 6.6 Numerical Target ID System: No No Yes Non-Numerical Category Target ID: Yes Yes No Number of Target ID Categories: 3 N/A 11 Levels of Adjustable Discrimination: 4 6 8 Tone/Audio ID: 3 4 4 Number of Tones: 1 1 1 Selectable Notching Capabilities: N/A 1 1 Present Ground Balance: Yes Yes No Manual Ground Balance: No No Yes Searchcoil System: Concentric 7-Inch Open Coil System Concentric 8-Inch Open-Face Coil System Concentric 8-Inch Open-Face Coil System Features of Bounty Hunter Metal Detector Discovery: Uses two 9V Alkaline Batteries (not included) Includes a 1/4" headphone jack Package Contents: Bounty Hunter Discovery Series Metal Detector Bounty Hunter Discovery 2200 Metal Detector Disc22