In addition, the two-tone audio feedback control aids in distinguishing between valuables and undesirable metals and can be discerned with or without headphones plugged into the 1/4 " jack. This model also includes Bounty Hunter's standard preset ground balance with the added flexibility of a user-controlled ground balance for sand, clay, and red clay. The entire line of Bounty Hunter metal detectors operate on two 9-Volt batteries (not included) and are designed to be lightweight and ergonomic for easy handling and comfortable use. Their standard motion all-metal mode detects all types of metal, while the progressive discrimination control eliminates iron and other unwanted items. FEATURES: - Sensitivity Meter: Provides visual cue of nearing target - Two-Tone Audio Feedback: Audible tool for accurate target identification - User-Controlled Ground Balance: Neutralizes the response to mineral content in sand, clay, or red clay - Sensitivity Control: Reduces electromagnetic interference - Discrimination Control: Eliminates unwanted metals from detection - ¼" Headphone Jack: Use to increase privacy and sensitivity to tones, extend battery life - 7" Closed Waterproof Coil: Detects in damp grass or shallow water - Lightweight, Ergonomic Design: Provides ease-of-use and comfort for hours of productive detecting - Depth Detection: 7" for coin-size objects; 2' for large objects - Operates on Two 9-Volt Alkaline Batteries (not included) - Low Battery Indicator - Visual Target System: Intensity Meter - Preset Ground Balance: Neutralizes the response to ground mineral content - Modes of Operation: Motion all-metal mode and progressive discrimination - Audio Feedback: Internal speaker or headphones (not included) - ¼" Headphone Jack: Compatible with most headphones - 7" Closed Waterproof Coil - Lightweight: 2.6 lbs. - Ergonomic: Adjustable height, padded armrest, S-rod handle system, comfort hand grip, detector stand