Feature: 1. Power Function: The AKS metal detector has excellent sensitivity and stability. The most built product kernel, intelligent modular operation is powerful 2. Upgraded: This kind of equipment has high quality remote search system and precise positioning detection system, which breaks through the traditional detection method. 3. Convenient: Using microcomputer control chip unit calibration, instrument, self test system can quickly and easily scan, test. 4. Advanced: The underground metal finder is the most advanced, practical detection method, economic metal detection instrument. 5. Improve Efficiency: The underground metal locator greatly improves the work efficiency of dibao enthusiasts and reduces the labor intensity of testing. Specification: Item Type: AKS Metal Detector Material: Aluminum Weight: Approx. 2715g/95.8oz Host Size: Approx. 33.5x16.5cm / 13.2x6.5in Accessory Size: Approx. 11.5x7.5cm / 4.5x3.0in Voltage: 100-240V Range: 1000m/3280.8ft Depth: 15m/49.2ft Host Battery (Delivered with Built in Battery): Rechargeable Lithium Battery, 12V, 1600mah Emitter Accessory Battery (delivered with Built in Battery): Rechargeable Lithium Battery, 9.6V, 1200mah Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Detection Type: Gold, Silver, Copper, etc Charging Time: 10-12 Hours Purpose: Metal Search. Package List: 1 x Plastic Storage Box 1 x Host1 x Transmitter Accessories1 x Earphone1 x Earphone Box1 x Plug Power Adaptor1 x English Instruction1 String x Keys(2pcs)