Underground Treasure Locator with Display Screen 15m Depth 1000 Meter Range Metal Detector for Gold Silver Copper Precious Stones US Plug 100‑240V Item Type: Underground Treasure Locator Material: Aluminum, ABS Weight: Approx. 1480g / 52.2oz Main Unit Size: Approx. 29x10.5x7cm / 11.4x4.1x2.8in Display Size: Approx. 12.6x8cm / 5.0x3.1in Range: 1000m / 3280.8ft Depth: 15m / 49.2ft Main Unit Battery (Built In): Nimh Rechargeable Battery, AAA, 1000mah Signal Frequency: 400-470MHz Detection Type: Gold, Silver, Copper, Precious stones Charging Time: 8-10 Hours Usage: Metal Finding Working Condition: 1. Fully Charged, The Antenna Is Installed, Open The Host, Adjust The Depth And Range Search Function Can Be Detected; 2. In The Handheld Stable Without Other Interference, The Detection Of The Designated Detection Of The Items Will Be Swaying Left And Right, The Detection Of Larger Items When The Amplitude Of The Swinging Action Will Increase;