1000 Meters Range Metal Locator Underground 20m Depth Metal Detector with Display for Gold Treasures 100‑240V AU Plug Item Type: Metal Detector Material: ABS Gross Weight: 1376g / 48.5oz Metal Detector Size: 27.7x16.5x10CM / 10.9x6.5x3.9in Display Size: 12.7x8CM / 5.0x3.1in Accessory Size: 11.8x8x4CM / 4.6x3.1x1.6in Range: 1000 meter / 1093.6yd Depth: 20 meters / 21.9yd Host Battery: NiMH rechargeable battery, AAA, 1600MAH (Built in Battery) Transmitter Accessory Battery: NiMH rechargeable battery, AAA, 1200MAH (Built in Battery) Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Detection Type: Gold, silver, copper and treasure stones Charging Time: 10-12 hours Application: Metal Search 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.