Features1Quick and Efficient: Using microcomputer to control chip unit calibration, the instrument and 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. 2Search and Positioning Detection: This underground metal detector has a remote search system and a precise positioning detection system, which breaks through the traditional detection method. 3Good Features: This metal detector core is the strongest, and the intelligent modular operation is powerful, fast, efficient, advanced, easy, and convenient. 4Advanced Detection Method: This equipment is the most advanced and practical detection method and economical metal detection instrument. 5Sensitive and Stable: The underground metal detector has sensitivity and stability, and is easy to operate and use. Fit gold, silver, copper, jewel.SpecificationItem Type: Metal DetectorMaterial: AluminumColor: As Pictures ShownWeight: Approx. 1464g / 3.2lbVoltage: 100-240VProduct Size:Host: Approx. 31x16.5cm / 12.2x6.5inAccessory Size: Approx. 11.5x7.5x3.5cm / 4.5x3.0x1.4inRange: Approx. 800m / 874.9ydDepth: Approx. 14m / 15.3ydHost Battery: Rechargeable NiMH Battery, AAA, 1600mAh (Shipped with Built in Battery)Transmitter Accessory Battery: Rechargeable NiMH Battery, AAA, 1200mAh (Shipped with Built in Battery)Transmission Frequency: 5.6-6KHzSignal Frequency: 360-440HzDetection Type: Gold, Silver, Copper, JewelCharging Time: 10-12 hoursApplication: Metal SearchPackage List1 x Host 1 x Transmitter Accessory 1 x Plug Power Supply 1 x English Manual