MD3010II High Sensitivity Underground Metal Detector<br> 1. Material: ABS plastic + aluminum + copper<br> 2. Detection diameter: 8 inches<br> 3. Detection object: metal<br> 4. Current: 30-60mA<br> 5. Working voltage: 7.1-9.6V<br> 6. Working frequency: 7.5KHZ<br> 7. Power supply: 6 x 1.5V AA alkaline batteries (not included)<br> 8. Audio: 294Hz (re), 330Hz (me), 349Hz (fa), 392Hz (so), 440Hz (la), 494Hz (ti), 523Hz (do)<br> 9. Detection indication: LCD analog display mode, audio display mode<br> 10. Weight: about 1.1kg<br> Features:<br> 1. Suitable for finding metal objects and places where hidden metal needs to be detected<br> 2. Height and length adjustable, comfortable to use<br> 3. LCD analog display and audio display metal detection<br> 4. Can detect a variety of metal objects, can set some objects that do not want to detect<br> 5. Low battery indicator and large LCD display with backlighting can identify metal at night or outdoors<br> 6. The detector can be set to not respond to certain objects<br> 7. When an object is detected, a tone corresponding to the target will be generated<br> 8. Hidden search coil cable (connection between control unit and search coil) to avoid tangling and easy to adjust the length of the rod<br> 9. With headphone jack for headphone connection, stereo or mono headphones can be used<br> 10. Volume control, adjust the output volume of the speaker or headphones<br> 11. Battery status indicator, showing the status of the battery<br> 12. Waterproof search coil, can be used in shallow water<br> 13. Armrest and armrest bar, eliminate the pressure of the forearm, after holding the detector with the arm for a long time, the nylon bracket can further fix the sliding of the hand box