Widely Use - Perfect for finding metal objects and anywhere that metal needs to be detected.  Designed to Find Metal - Search gold and silver jewelry, coins and other metal in the ground.  Easy-to-use Operation - This metal detector is tailor-made for inexperienced metal finder and suitable for children.  Adjustable Sensitivity - Easy to control the detector's sensitivity level with sensitive control.  Adjustable Volume - Adjust the volume level of speaker when searching to find missing or lost coins, pieces of jewellery and other metal objects.  Detection Indication - Audio alert and LCD display indicate the detection of metal.  Waterproof Search Coil - You can use the metal detector in the shallow water with waterproof search coil.  Detector Diameter: 6.10inch  Detect Objects: Metal(Iron nail, iron covering, aluminum ring, small aluminum product, coins, gold, bronze, silver)  Detection Mode: All Metal  Operating Frequency: 55.2KHZ  Operating Current: Standby 20mA, Max 70mA  Operating Voltage Range: 7V-9V  Detection Indication: LCD Display, Sound Mode  Sensitivity: One Coin: 10mm, Stepless Adjustable  Detection Depth: 10-100cm (Depends on the target area you detect)  Battery: 1 * 6F22 9V Battery (Not Included)  Application: Looking for Coins, Silver and Gold, Detecting All Kinds of Metal, Scientific Education, Parents-and-Kids Activity, Simple Metal Detection  Operating Temperature: -15-45℃ / 5-113℉  Storage Temperature: -20-60℃ / -4-140℉  Shovel Size: 32 * 9cm / 12.60 * 3.54in  Item Size: 19 * 15.5 * 67cm / 7.48 * 6.10 * 26.38in  Item Weight: 570g / 20.11oz  Note: The search coil is waterproof, but the control housing is not waterproof.  colour:black  Material:Metal + plastic  Package Contents:  1 * Metal Detector Main Unit with Search Coil  1 * Connecting Rod  1 * Armrest  1 * Shovel  1 * User Manual  Only the above package content, other products are not included.  Note: Light shooting 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.