Product s Specifications: 1.Power supply: 1 x 9 V (6F22) 2. Frequency: 5.0 kHz 3. Current: Static: 10 mA Maximum: 70mA 4.Voltage: 7.2-9.6 V. 5. Sensitivity: US 25 cents: 130 mm 6. Display mode: mechanical pointer mode 1. Widely used - Perfect for finding metal objects and wherever hidden metal needs to be detected. Adjustable sensitivity - Easy control of the sensitivity of the detector with sensitive control. 2. Reasonable design - Designed to find metal - Find gold and silver jewelry, coins and other metal (iron nail, iron cover, aluminum ring, small aluminum product, coins, gold, bronze, silver) in the ground. Easy to use - This metal detector is tailor-made for inexperienced metal finders and suitable for children. 3. Adjustable volume - Adjust the volume of the speaker when looking for missing or lost coins, trinkets and other metal objects.Application: Looking for coins, silver and gold, recognizing all kinds of metal, scientific education, Parents and child activity, simple metal detection 4. Detection indicator - Audio alarm and LCD display indicate the detection of metal. Waterproof Search Coil - You can use the metal detector in shallow water with a waterproof search coil. Only a 9 V battery is required to operate the product. If it stops working for a long time, please remove the battery. 5. Great Gift - The little metal detector for kids would be a great gift for a birthday, Christmas or any special day you want to surprise. Everyone has a treasure hunt dream, whether theyre a child or an adult.