【Microelectronic Processor】This metal detector utilizes a microelectronic processor to control the chip unit calibration and instrument self testing system, which allows for easy and fast scanning and testing, improving the efficiency of the mental detector and reducing the labor strength of testing. 【Long Battery Life】The device has a rechargeable battery that can be charged directly on a charger and supports mobile power. With a full charge, you can go treasure hunting for 4 to 10 hours (depending on whether the screen is on or not). 【Multiple Frequency Technology】This metal detector now operates on a number of different frequencies in order to pick up more from gold objects of different sizes! 【Excellent Material】The of this metal detector is made of excellent ABS material, which is very sturdy and wear resistant, not easy to be damaged and has a long service life. 【Widely Used】Widely used for security inspections, archaeological treasure hunting, prospecting. It detects gold, silver, copper, conventional precious metals (palladium, platinum), gemstones (diamonds, emeralds, rubies, etc.).