Feature: 1. High Efficiency: Using microcomputer to control chip unit calibration, with self inspection system, can be scanned and detected quickly and easily, which greatly improves the work efficiency of earth treasure enthusiasts and reduces the labor intensity of inspection. 2. High Accuracy: This metal detector has a premium remote search system and a precise positioning detection system, which breaks through the traditional detection method. 3. Product Features: This metal detector core is the strongest, and the intelligent modular operation is powerful, fast, efficient, advanced, easy, and convenient. 4. Advanced Detection Method: This handhold metal detector is the most advanced and practical detection method and economical metal detection instrument. 5. Sensitive and Stable: The metal detector for gold and silver has excellent sensitivity and stability, and is easy to operate and use. Fit gold, silver, copper, jewel. Specification: Item Type: Metal Detector Product Material: ABS Weight: Approx. 778g / 27.4oz Voltage: 100-240V Range: Approx. 1200m / 1312.3yd Depth: Approx. 25m / 27.3yd Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Charging Time: 10-12 Hours Purpose: Metal Inspection Detection Type: Gold, Silver, Copper, Jewelry Product Size: 25.5 x 9 x 4.5cm / 10.0 x 3.5 x 1.8in Battery: Nickel Hydrogen Rechargeable Battery, AAA, 1000mAh (Shipped With Built In Battery) . Package List: 1 x Metal Detector 1 x Manual1 x Adapter Note: 1. It is necessary to operate strictly and maintain good stability in the wild jungle environment without interference.2. Operate without wind.