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.Specifications:Color: BlackMaterial: ABS + AluminiumPower Supply: 2 x 9V (6F22) Frequency: 5.0 KHzCurrent: Static: 10mAMaximum: 70mAVoltage: 7.2 - 9.6 VDisplay Mode: mechanical pointer mode, sound modeTelescopic Length: 30.7-42.5 inchesProbe Diameter: .