1、The detector has 8 levels of sensitivity, adjustable, has a strong discrimination ability, strong versatility, and easy to use. Ultra‑slow scanning recognition, using very slow search coil scanning to distinguish different types of metals. 2、Three‑tone audio, which can be distinguished, divided into high, medium and bass, suitable for different types of metal. With earphone and jack, you can connect 3.5mm earphone and work normally. 3、Used as a detector to search for coins, cultural relics, jewelry, gold, etc. The adjustable shaft allows you to adjust it to a comfortable stem length for use. 4、240mm waterproof search coil, can be used in dry floor, wet sand, shallow water environment. (Note: The detector cannot be used in the rain) 5、The LCD screen can display the disc/notch sound, SENS level, battery status, target, target depth, and metal type. Item Type: Underground Metal Detector Material: ABS Plastic Model: MD-3030 Frequency: 6Khz Sensitivity: US 25/50 Cents: Approx. 20cm/7.9in Search Mode: LCD and sound mode Search Coil: Waterproof Measuring Range: Approx. 1-30cm/0.4-11.8in Stretch Length: Approx. 40-60in/102-152cm Probe Disc Size: Approx. 255mm/10in Power Supply: 2 x 9V 6F22 dry batteries (Not included) How to Use: 1. Assemble the metal detector, connect the probe to the lower pole, and connect the upper pole to the lower pole. 2. Install 2pcs 9V dry battery (not included) on the controller. 3. Press MOOE, SET, ENIER, POWER to adjust according to the panel keys. 1 x Probe Disc 1 x Controller 1 x Handle 1 x Connecting Rod 1 x Headset 1 x Instruction