With your metal , you for coins, , jewelry, gold, and silver just about anywhere, including lawns, snows, mountains and etc. The comes with high sensitivity and strong ability of discrimination. It is versatile and easy to use. Feature - Color: as shown. - Material: plastic - Size: 123x20x20cm - It’s a compact handheld metal that will help you with hunt - The metal is extremely portable by measuring. - Detect metals in materials, , and food. - Backlit LCD displays can easily identify metals in dark or light conditions. - Provide earphone connection to 7 headphone jack. Stereo or mono headphones are available. Specification Battery: 6 AA batteries (not including battery) Current: minimum ~ 30mA maximum ~ 60mA Working voltage: 7.1 ~ 9.6v frequency: 7.5KHz +/- 1KHz Working environment: -20 degree centigrade ~ 60 degree centigrade Dimensions: (mm) 550 (length) × 205 (width) × 130 (high) weight: 3kg Net weight: 1.37kg Package list: 1