Goint MD6350 Handheld Underground Metal Detector Outdoor Archaeology Waterproof Treasure Hunting Detector 1. Detection plate: 28 x 22cm DD waterproof detection plate, which can expand the detection range of the instrument 2. Recognition ability: can distinguish gold, silver, copper, iron, etc. 3. Sound recognition ability: the alarm sounds of gold, silver, copper and iron can be completely distinguished 4. High sensitivity: improve the stronger detection sensitivity and increase the detection depth of the machine 5. Headphones: with high-definition headphones 6. Positioning: can quickly locate the exact position of underground metal 7. Acceptreject: single-choice detection can be performed through the recognition button, for example: select gold, the instrument will only alarm for gold 8. Coin depth display: there is a small metal depth display on the right side of the host 9. Power status display: can display the current power of the power supply 10. Positioning button: can accurately locate the position of the metal 11. Signal frequency: 7.5KHz+-1KHz 12. Power supply: 4 AA alkaline batteries (not included) 13. Alarm mode: sound alarm, screen display 14. Measuring range: 15-20cm 15. Five detection modes: You can choose the default detection mode or customize the detection mode - Jewelry mode (you can delete iron and find small metals, such as rings, earrings, necklaces, etc.) - Custom mode (you can selectively detect single items and choose the type of metal you want to detect) - Relic mode (you can delete iron and only detect non-ferrous metals to improve the efficiency of underground metal detection) - Coin mode (the purpose of this identification mode is to exclude acidic garbage, many pull rings and label paper detection) - All metal mode (you can detect all metals, gold, silver, copper, iron, etc.)