【Overview】  Light metal hand detector for children light weight, easy operation, ergonomic design, high sensitivity There is nothing better than accompanying your son on an exciting treasure hunt through a mental detector. Children love to explore the world and pose as detective. When you both find a gold knife and the metal detector beeps for you, that moment will be wonderful.   【Adjustable Sensitivity and Volume】  Easily control the sensitivity level of the detector with sensitive controls: Adjust the speaker volume when looking for missing or lost coins, jewelry and other metal objects.   【Designed to Find Metal】  Look in the bottom for gold and silver jewelry, coins and other metal (iron nail, iron plating, aluminum ring, small aluminum product, coins, gold, bronze, silver). Ease of Use - This metal detector is tailor-made for inexperienced metal finders and suitable for children.   【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. The product only needs a 9V battery to function. If it stops working for a long time, please remove the battery.   【Waterproof Search Coil】  Waterproof Search Coil - You can use the metal detector in the shallow water with waterproof search coil.   Specification  Power supply: 9 V (6F22) Frequency: 55.3 kHz Current: Standby: 20mA / Max: 70mA Voltage: 7V-9V Sensitivity: One coin: 10 mm. Display mode: sound mode / LCD mode Stretch length: 6.1 inches Detector diameter: 6.77 inches Weight: 0.6 kg (battery not included)   Package list:  1 * Metal Detector Main Unit with Search Coil 1 * connecting rod 1 * armrest 1 * user manual   Waterproof coil     High sensitivity     Large LED display