Handheld Long Range Gold Metal Detector Gems Diamonds Finder Detection Tool with 6 AntennasEU Plug 100‑240V Condition: Item Type: Metal Detector Material: Aluminium Alloy+ABS Color: As shown in the picture Search System: Microcomputer CPU control and reflection conductivity Search Range: 1000m/3280.8ft Detecting Depth: 20m/65.6ft Transmitting Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Working Power Supply: 12V 1000-1600mAh Charging Method: The instrument has been installed with a rechargeable battery, directly connected to the charger for charging, the charging time is 10-12 hours. Detection Type: Gold, Silver, Copper, and Precious Stones Plastic Case Size: Approx. 323x280x118mm / 12.7x11.0x4.6in Boot test: Turn on the switch of the host and the search instrument, the working indicator on the search instrument will flash; when the copper gear is selected on the host, the corresponding gold indicator on the search instrument will light up, and when the other silver, diamond, and gems gears on the host are selected in turn , The corresponding indicator light on the search instrument will light up. If the gear is selected on the main unit and the corresponding indicator on the searcher is not lit, the main unit and searcher may have insufficient power and need to be charged. If the above conditions are normal, the instrument is normal and can be used with confidence.