Widely used - suitable for finding metal objects and wherever you need to detect metals. Designed to find metals - Search underground for gold and silver jewelry, coins and other metals. Adjustable sensitivity - Easy to control the sensitivity level of the detector through control. Detection indication - Audio alarm and LCD display indicate that metal is detected. Tip: The search coil is waterproof, the control box is not waterproof. Feature: Light weight, easy operation, comfortable handling, ergonomic design,high sensitivity,comes with adjustable lightweight bracket. Detection indication: Audio alert and LCD display indicate the detection of metal(6cm/2.36in detector diameter,10cm/3.94in detection depth), metal is detected there's beep sound and LCD screen light to remind you. Adjustable sensitivity & volume: Easy to control the detector's sensitivity level with control;adjust the volume level of speaker when searching to find missing or lost coins, pieces of jewellery and other metal objects. Waterproof search coil: You can use the metal detector in the shallow water with waterproof search coil,it's perfect outdoor use to a treasure hunting journey. Application: perfect gift for children,this is tailor-made for inexperienced metal finder for cultivating an exciting interest and hobby,can be used in science education, parents-kids activity and simple metal detection. Specification: Power supply: 9V (6F22) (not included) Frequency: 5.0KHz Current: Standby: 10mA / Maximum: 70mA Voltage: 7.2V-9.6V Sensitivity: a coin: 13mm/0.51inApplications: Science Education, Parents-Kids Activity, Simple Metal Detection Color: As Shown Material: metal+plastic Package Contents: 1 x Underground Metal Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.