Beginner and Children Underground Metal Detector Gold Detectors Treasure Hunter Tracker Seeker Metal Circuit Detector Ground Nugget Detector Gold Digger Treasure Hunter Metal Detecting Tool With this powerful and versatile metal detector, you can hunt for coins, relics, jewelry, gold and silver just about anywhere. This metal detector is versatile and easy e.   Features: Widely Use - Perfect for finding metal objects and anywhere that hidden metal needs to be detected.  Waterproof Design - The WATERPROOF stem and coil enable you e our metal explorer underwater, especially suitable for outdoor activities, on the beach or in the stream. But it should be noted that the control box is not waterproof. Adjustable Height of Metal Detector - You can adjust the connecting stem length for comfortable with adjustable height of arm rest, to make sure this detector is easy for people of different heights and ages. Detection Indication - Audio alert and pointer indicate the detection of metal. Headphone Jack - Let you connect headphones(not included) and operate without disturb, and the sensitivity is also adjustable. Suitable for finding and testing metal objects, gold and silver jewelry, coins, relics, etc. Whether you are a budding treasure hunter or an experienced metal detecting hobbyist, you can easily use it.   Specifications: Material: ABS Plastic + Aluminum  Sensitivity: Approx. 160mm  (Test Coin: US Φ 25) Detect Objects: Metal(Iron nail, iron covering, aluminum ring, small aluminum product, coins, gold, bronze, silver) Detection Mode: All Metal, Discrimination  Operating Frequency Range: 5 ~ 6.5KHZ  Power Supply: 2 x 6F22 9V Batteries (Not Included) Operating Current: ≤12mA Operating Voltage: 9V Detection Indication: Mechanical Pointer Mode, Audio Mode Control: Power Switch Sensitivity: Adjustable  Detection Depth: 10-30cm / 3.94-11.81in Volume: Adjustable Earphone Jack: Diameter 3.5mm earphone jack(earphone not supplied) Adjustable Height of Detector: Approx. 79.5-108cm / 31.30-42.52in Operating Temperature: -15～45℃ / 5～113℉  Storage Temperature: -20～60℃ / -4～140℉  Package Size: Approx. 53.5 * 21 * 13.5cm / 21.06 * 8.27 * 5.32in Package Weight: Approx. 1440g / 50.83oz   Note: The search coil is waterproof, but the control housing is not waterproof.   Package List: 1 * Metal Detector Main Unit 1 * Armrest 1 * Connecting Rod   1 * Search Coil 1 * User Manual