Features: - Display interface is clearer and faster to read data. - Audio alert and pointer indicate the detection of metal. - Adjustable stem lets you adjust the detector's length for comfortable use. - With the volume control knob, you can adjust the output volume of the loud speaker or headphone. - With handle and elbow support which can let you carry and operate your detector comfortably, to make sure this detector is easy for people of different sizes, ages. - Suitable for finding and testing metal objects, gold and silver jewelry, coins, relics, etc. Whether you are a budding treasure hunter or an experienced metal detecting hobbyist, you can easily use it. Specifications: Sensitivity: Adjustable Volume: Adjustable Main material: Metal Operating frequency: 5.69KHz Speaker or earphone jack: 1.2" Operation modes: all metal and DISC Sensitivity: max. depth >180mm for a U.S quarter in all metal mode Power supply: 2pcs x 9V battery (not included) Operating current: standby 10mA, max. 70mA Detection indication: mechanical pointer mode, audio mode Adjustable stem: max. length: about 1080mm/42.5in, min. length: 780mm/30.7in Waterproof search coil diameter: about 200mm/7.9in Detect objects: metal (iron nail, iron covering, aluminum loop, small aluminum product, coins, gold, bronze, silver) Application: testing metal foreign body of 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, detection of interpol search, checking metal foreign bodies in expressage and luggage. Package Included: 1 Detector 1 Armrest 1 Search Coil 1 User Manual 2 Connecting Rods Notes: 1. Manual measuring, please allow 1 ~ 3mm error, thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.