coins, relics, jewelry, gold and silver everywhere. It is also widely used in detecting aluminum, copper and rare metals and anywhere that hidden metal needs to be detected.  Specifications: Color: Black Material: ABS Plastic ' Aluminum  Sensitivity: Min. 130mm / 5.12" (Test Coin: US Φ 25) Detect Objects: Metal(Iron nail, iron covering, aluminum ring, small aluminum product, coins, gold, bronze, silver) Detection Mode: All Metal, Discrimination  Operating Frequency: 5KHZ  Power Supply: 2 x 6F22 9V Batteries (Not Included) Operating Current: Standby 10mA(LCD with backlit color 80mA)                                Max 70mA(LCD with backlit color 150mA) Operating Voltage Range: 9V Detection Indication: Mechanical Pointer Mode, Audio Mode Control: Power Switch Sensitivity: Adjustable Volume: Adjustable Adjustable Height of Detector: 78-107cm / 30.71-42.12inch Application: Testing metal foreign body of raw materials, fuel and food, Detection of underground pipeline & line, Archaeology, Exploration, Found buried treasures of gold, silver and metal artifacts, The acquisition of scrap metal industry, Customs and safety inspection, Police department detective search, Detection of interpol search, Checking metal foreign bodies in express delivery and luggage.  Operating Temperature: -15～45℃ / 5～113℉  Storage Temperature: -20～60℃ / -4～140℉  Item Size: 107 * 27 * 16.5cm / 42.12 * 10.63 * 6.50in Item Weight: 862g / 1.90 lb Package Size: 54 * 22 * 11cm / 21.26 * 8.66 * 4.33in Package Weight: 1.28kg / 2.83 lb Note: The search coil is waterproof, but the control housing is not waterproof. Package List: 1 * Metal Detector Main Unit 1 * Armrest 1 * Connecting Rod   1 * Search Coil 1 * Search Coil Knob 1 * User Manual