Features - Color: As shown. - Material: ABS. - Size: About 55 x 23 x 12cm. - Frequency: 5.0 KHz - Static current: 10mAh. - Largest current: 70mAh - Voltage: 7.2-9.6V - Retractable length: 30.7-42.1 inches. - Waterproof search coil-the search coil of our metal detector is waterproof, so it can be used when it is rainy, but we do not recommend underwater detections. - Earphone Jack-there is an earphone jack on our control panel. You can connect a pair of headphones (not supplied) to the detector so you can listen privately. Using earphones also saves battery power and makes it easier to identify subtle changes in the sounds you hear, for better detection results. - Adjustable stem-the length of our metal detector is adjustable, it is between 33 inch to 43 inch. You can adjust the height to get comfortable holding. - Two operation modes-there are two modes: All Metal - to let you search for all different types of metal with auto ground balance and high sensitivity. DISC - to discriminate what kind of metal is being detected. - Compact, waterproof, lightweight and collapsible. Great for travel