Features 1、Better Detection: The metal detector is capable of detecting iron nails, iron sheets, aluminium rings, small aluminium products, coins, etc. 2、The Working Mode: Comes with 2 working modes, all metal mode and recognition mode, which is more than enough to satisfy your working needs. 3、Reliable for Use: The waterproof probe disk allows for use in shallow water, suitable for gold detection, security inspection, and so on. 4、Simple Operation: The volume of speaker and headphone as well as the probe length are adjustable, easy to operate and high in efficiency. 5、Easy Carrying: Designed to have a light weight and a compact size, the convenient carrying enables indoor and outdoor using. Specification Item Type: Metal Detector Item Model: GT6100 Battery: 2 x 6F22 9V alkaline battery, delivered without battery. Frequency: 5.0 KHz Static Current: 10mA Maximum: 70mA Voltage: 7.2-9.6V Sensitivity: US 25 Cent: 130mm Display Mode: Mechanical pointer mode and sound mode. Telescopic Length: 30.7-42.1 inches Probe Diameter: 6.5in Headphone Jack: 3.5mm, with headphones. Detection Object: Metal such as iron nails, iron sheets, aluminium rings, small aluminium products, coins, gold, bronze, silver. Applications: For gold detection, desert detection, security inspection, archaeology, treasure hunting, beach detection. Package List 1 x Metal Detector 1 x Searching Coil 2 x Connecting Rod 1 x User Manual 1 x Headphone 1 x Shovel 1 x Shovel Bag