Metal Detector Sensitive with Dispaly 15m Deep 1000m Range Metal Finder 100‑240V for Copper Silver Gold Treasure US Plug Item Type: Metal detector Material: ABS Weight: Approx. 1091g / 38.5oz Host Size: 26x18x11.5cm / 10.2x7.1x4.5in Search System: Microcomputer CPU control and reflective conductivity Range: 1000 meters Depth: 15 meters Battery: 1600mAh AAA NiMH rechargeable battery(included) Signal Frequency: 360 to 440Hz Detection Type: Copper, silver, gold, treasure Charging Time: 10-12 hours Usage: Metal Finding Work Status: 1. When fully charged and with the antenna installed, simply turn on the main unit and adjust the depth and range search functions to initiate detection. 2. When detecting the specified objects in a stable handheld position without any other interference, the device will sway and oscillate. The amplitude of the swaying motion will increase when detecting larger objects.