1. IP68 waterproof function, can be used for deep diving, can be used for deep detection of metal and coins under water, the indicator can be placed completely under water2. One-button operation, easy to use3. With LED indicator, can be seen in dim environment4. 360 degree detection range: there are three sensitivity levels, with different audio and vibration alarms, can sense the different distances between the sensor and the object5. 3 alarm modes:- Audio mode- Vibration mode- Sound + vibration mode6. Power supply: 9V battery (not included) 7. Operating frequency: 3kHz8. IP rating: IP68 standard (can be submerged in water) 9. Size: about 25.8 x 4.5cmPacking list:- Metal detector x 1- Battery cover x 2 (1 waterproof, 1 not waterproof)- Leather case x 1- Retractable hanging cable x 1- User manual x 1Specification: Package Weight One Package Weight 0.70kgs / 1.55lb One Package Size 30cm * 8cm * 8cm / 11.81inch * 3.15inch * 3.15inch Qty per Carton 42 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 42 pcs = 7434 pcs40HQ: 412 cartons * 42 pcs = 17304 pcs