Underground Metal Scanner with Display 1000m Range 15m Depth Underground Treasure Finder for Gold Silver Copper Diamond Gem Stone AU Plug 100‑240V Item Type: Underground Metal Scanner Material: Aluminum, ABS Weight: Approx. 1722g / 60.7oz Main Unit: Approx. 28x10.5x7cm / 11.0x4.1x2.8in, Display: Approx. 12.6x8cm / 5.0x3.1in Transmitter Size: Approx. 15x9.8x5cm / 5.9x3.9x2.0in Range: 1000m / 3280.8ft Depth: 15m / 49.2ft Main Unit Battery (Built In): Nimh Rechargeable Battery, AAA, 1600mah Transmitter Accessory Battery (Built In): Nimh Rechargeable Battery, AAA, 1200mah Transmitter Frequency: 5.6-6khz Signal Frequency: 360-440hz Detection Type: Gold, Silver, Copper, Diamond, Gem stone Charging Time: 5-8 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;