Feature: 1. [High Sensitivity] Underground metal detector has high sensitivity and stability, which is easy to use, strong core, intelligent modular operation, powerful, advanced and efficient. 2. [Accurate Remote Search] With high quality remote search system and accurate positioning detection system, the measurement range is 1000m. 3. [Self Checking System] The microcomputer is used to control the calibration of the chip unit, and the self checking system can scan and detect quickly and easily. 4. [Labor Saving] Greatly improve the work efficiency of the treasure lovers and reduce the labor strength of detection, so you can use it with confidence. 5. [Widely Application] Underground metal detector is made of high quality ABS and aluminum material, durable, long service life, and widely used to detect gold, silver, copper. Specification: Item Type: Metal Detector Material: ABS, aluminum Host Size: Approx. 28.5 x 16.5 cm / 11.2 x 6.5 in Accessories Size: Approx. 11.9 x 8 cm / 4.7 x 3.2 in Voltage: 100-240V Range: 1000 meters Depth: 30 meters Host Battery: NiMH rechargeable battery, AAA, 1600MAH (Battery Included) Transmitter Accessories Battery: NiMH rechargeable battery, AAA, 1000MAH (Battery Included) Transmission Frequency: 5.6-6KHz Signal Frequency: 400-470Hz Detection Type: Gold, silver, copper, and gems Charging Time: 10-12 hours Application: Metal finding Weight: Approx. 3219g / 113.5oz. Package List: 1 x Plastic Storage Box1 x Host (Battery Included)1 x Transmitter Accessories (Battery Included)1 x Earphone1 x Headphone Box1 x Plug Power Supply1 x English Manual2 x Accessory Rod