Features High Accuracy: Can identify specific types of metals through frequency regulator. The metal detector has a remote search system and an accurate position detection system. Moreover, the detection range can get to 800m and the underground detection depth. High Performance: The underground metal detector is made of aluminum alloy, which is durable, safe, easy to use and has a long service life. With 5.6‑6KHz transmission frequency and 360‑440MHz signal frequency. Premium Design: Microelectronic processor control chip unit calibration and instrument self inspection system, which can conveniently and quickly scan and test, improve the work efficiency of treasure finding, and reduce the labor of testing. Wide Utility: Can identify the various metals such as gold, silver, copper, stones, etc., so that you can easily find the metal items that are useful to you and accurately determine the position of the objects. Simple Carrying: Comes with a light weight and a compact size as well, the metal detector is very simple to operate and take for outdoor use. Specification: Item Type: Metal Detector Detection Depth: Approx. 14m / 45.93ft Note: This instrument can detect at least 3.5m for an object of 5 x 5cm. For an object of 30 x 30cm, it can detect 5-8 meters, and if an object of this size is buried for a long time, it can get to 14m. If the area of an object is larger, its detection depth will deepen.  Function: It can accurately detect the burial position of objects and can locate them. It can also rely on frequency regulators to identify specific types of metals.  Search System: Microcomputer processor control and reflection conductivity.  Search Range: Approx. 800m / 2624.67ft Transmitter Battery: 1 x 9V 6F22 battery, shipped without battery.  Receiver Battery: 1 x 9V 6F22 battery, shipped without battery.  Signal Frequency: 360-440MHz Detection Type: For gold, silver, copper, stone, etc.  Package List: 1 x Transmitter 1 x Receiver 1 x User Manual Package List 1 x Transmitter 1 x Receiver 1 x User Manual