Feature 1[TYPE IDENTIFICATION] Handheld metal detector can identify specific types of metal through the frequency regulator, so that you can easily find metal items that are useful to you. 2[LARGE RANGE] The detection range of this metal detector can achieve 1000m, and the underground detection depth can achieve 20m, with high accuracy and sensitivity. 3[SELF CALIBRATION AND INSPECTION] Micro electronic processor controls chip unit calibration and instrument self inspection functions, making detection more accurate and efficient. 4[ALUMINUM ALLOY MATERIAL] The metal locator is made of premium aluminum alloy material, which is safe and sturdy, light and portable, convenient to use. 5[WIDE APPLICATION] This treasure finder is suitable for finding treasure, gold, silver, copper and stones.SpecificationItem Type: Metal DetectorMaterial: Aluminum AlloyDetection Depth:1. Maximum Detection Depth: About 20 meter2. For a 5x5cm object, can detect at least 3.5 meter3. For 30x30cm object, can detect 5 to 8 meter. If the object of this size is buried for a long time, the detection depth can achieve 20 meter4. The larger the area of the object, the deeper its detection depth will beSpecific Functions:1. It can accurately determine the buried position of objects and locate2. It can also rely on the frequency regulator to identify the specific type of metal3. Search System: Microcomputer processor control and reflection conductivity4. Search Range: Approx. 1000m/3280.8ft5. Detection Depth: Approx. 20m/65.6ftBattery: 1. Transmitter: 1 x 12V 18650 1600mAh rechargeable lithium battery (built in)2. Receiver: 1 x 12V 18650 1000mAh rechargeable lithium battery (built in)Voltage: AC100-240VTransmission Frequency: 5.6-6KHzSignal Frequency: 360-440HzDetection Type: Gold, silver, copper, stone, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Transmitter1 x receiver2 x Signal Rod1 x Power Adapter1 x User Manual