Features Three detection modes: audio, vibration, audio and vibration, the mode can be changed according to your needs. IP68 waterproof rating: You can use this product under water, not only limited to the ground, expand your detection space. Loss alarm function: If the button is not pressed or the device does not detect any target within 1 minute, the loss alarm will be triggered. It is convenient for you to find the device and avoid losing it. Easy to use: the device starts to sound a short beep and the LED will start flashing for 30 seconds, after that, to save energy, the device will automatically turn off. Sturdy and Durable - Made of high-quality ABS material, not easy to damage, wear-resistant, long service life, and can be used for a long time. Specification: Item Type: Metal Detector Material: ABS Model: ZN-AZ-JSTC-010 Purpose: Metal Detection Battery: 9V 1x6F22 (not included) Support language: English Working principle: pulse induction Working frequency: 3 kHz. Waterproof performance: IP 68-60m (200ft) Detection Mode: Audio/Vibration/Audio+Vibration/LED Sensitivity: 3 adjustable levels Package List: 1 x Detection Handle(Battery not included) 1 x Soil Detection Head 1 x Diving Detection Head 1 x Lanyard 1 x Portable Hanging Bag 1 x Manual Package List 1 x Detection Handle(Battery Not Included) 1 x Ground Detection Head 1 x Diving Detection Head 1 x Lanyard 1 x Portable Hanging Bag 1 x Manual