1000 Meters Range Metal Locator Underground 15m Depth Red Metal Detection Finder for Treasures US Plug 100‑240V Item Type: Metal Detector Material: ABS Gross Weight: 3131g / 110.4oz Color: Red Search Range: 1000 meters / 3280.8ft Detection Depth: 15 meters / 49.2ft Product Size: Host: 28.5x16.5CM / 11.2x6.5in Accessories Size: 12x8CM / 4.7x3.1in Host Battery (shipped with built in battery): NiMH rechargeable battery, AAA, 1600MAH Transmitter Accessories Battery (shipped with built in battery): NiMH rechargeable battery, AAA, 1200MAH Transmission Frequency: 5.6-6KHz Signal Frequency: 400-470Hz Detection Type: Gold, silver, copper, treasure stones Charging Time: 10-12 hours Usage: Metal finding Working Status: 1. When fully charged, turn on the host detector, turn on the switch of the sensor, press the button corresponding to the item that the sensor needs to detect, and adjust the host detector to adjust the depth and range search function to detect; 2. In the case of steady hand holding and no other interference, it will sway from side to side when detecting the designated object, and the amplitude of the swing will increase when the detected object is larger.