HIGH ACCURACY and WATERPROOF SEARCH COIL: The diameter of this metal detector's search coil is 8.5 inches. As you know, the bigger the search coil is, the higher the sensitivity, let you detecting more efficient and time-saving. Waterproof search coil enables you to use detecting to underwater, perfect for outdoor, like beach, stream, backyard. (Note: the control box is not waterproof) THREE STRONG MODES and TRUE DISCRIMINATION MODE - metal detector has 2 operation models: 1. All Metal Mode - the metal detector notifies you whenever it sees any metal. 2.Disc Mode - you can utilize this metal detector to discriminate against other types of metal for a specific one. And you can simply eliminate the metal you don' want through Discrimination Mode & mode. FULL ACCESSORIES and YOU WORTH TO OWN IT: not can get 1xMetal Detector, 1x Shovel(more & strong than other shovels), it has a headset jack that can be used with conventional headsets. Whatever you're a beginner or advanced metal detectorist, metal detector is always suitable . note: 2 x 9V battery power supply (not included) Material: plastic colour: black Package Contents: 1 x detector 1 x ordnance shovel 1 x headphones 1 x English Manual Only the above package content, other products are not included. Note: Light reflection 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.