Feature: 1. ALL METAL MODE: Lets you search for all different types of metal with auto ground balance and high sensitivity. It\u0027s used to find not only ferrous metal, but also non-ferrous one. 2. DISC MODE: Discriminates what kind of metal is being detected. The DISC mode also comes with auto ground balance. 3. 3.5MM EARPHONE JACK: Lets you connect 3.5mm headphones (not supplied) to the detector. Using earphones also saves battery power and makes it easier to identify subtle changes in the sounds you hear, for better detection results. 4. VOLUME CONTROL: To adjust the volume level of speaker and headphone. 5. VIEW METER AND POINTER: The meter pointer swings to the right if metal is found. 6. WATERPROOF SEARCH COIL: Lets you search for metal objects under shallow water. 7. ADJUSTABLE HEIGHT: Lets you adjust the detector\u0027s length to fits the operator\u0027s height without stooping down. 8. BATTERY-OPERATED: Operates on two 9V alkaline batteries (not supplied). 9. LIGHTWEIGHT: Weighs only 1.5lb, which is less than most detectors on the market, easy for kids and adults to hold it. 10. AUTO GROUND BALANCE: With automatic balancing(ground balance tracking), as you swing the detector back and forth, it adjusts the balance automatically. Specification: Specifications: Material: ABS Color: Black and Yellow Power Supply: 2 * 9V 6F22 battery (NOT included) Searching Coil Diameter: 200mm / 7.87in Adjustable Height: 830-1130mm / 32.68 * 44.49in Item Weight: 679g / 23.95oz Package Size: 49.5*22*11cm / 19.48*8.66*4.33in Package Weight: 1417g / 49.98oz . Package List: 1 * Metal Detector 1 * Earphones 1 * User Manual (English) Note: Only the search coil is water resistant while the control housing is not. Batteries not included. It is knocked down package, assembly required. The detector's internal speaker disconnects when you connect earphones.