Features: - Underground Detection: Designed to look for gold and silver jewelry, coins, and other metal in the ground. - Adjustable: The length of the detector can be adjusted to meet your daily demands. - Headphone Jack: The headphone jack is offered. Both stereo and mono headphones can be used. Also, the volume can be adjusted. - Waterproof: You can use the metal detector in shallow water. - Wide Use: Ideal for finding metal objects and anywhere that hidden metal needs to be detected. .