GTX4030 Metal Detector Hobby Small Ground Searching Gold Scanner Machine Treasure Hunt Search Getectorscanner GTX4030 Metal Detector Hobby Small Ground Searching Gold Scanner Machine Treasure Hunt Search Getectorscanner 1. Two Operation Modes: All Metal, Disc 2. Volume - To adjust the volume level of speaker and headphone. 3. Earphone Jack - Lets you connect headphones (not supplied) to the detector. 4. View Meter and Pointer - The meter pointer swings to the right if metal is found. 5. Waterproof Search Coil - Lets you search for metal objects under shallow water. Adjustable Stem - Lets you adjust the detector's length. 1. Power: 2 x 9V (6F22) 2. Frequency: 5.69 KHz 3. Current: Standby: 10mA,Max: 70mA 4. Voltage: 7.2-9.6V 5. Sensitivity: US 25 Cent: 180mm 6. Indication Mode: Mechanical Indicator Mode+ Sound Mode 7. Stretch Length: 30.7-42.1 inches 8. Detector Diameter: 7.9 inches size:Disk size approximately: 20cm Material:Plastic + Metal colour:black Package Contents: 1 x GTX4030 Underground Metal Detector Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.