Minelab GO-FIND 20 Metal Detector with Waterproof Coil, Carry Bag and Batteries Includes the following EXTRA Items: Minelab Go-Find Carry Bag | AA Batteries Application	Coin, Relic, Jewellery. Beach & Park | Technology	VLF (VFLEX) | Frequency/Transmission	7.8 kHz |Coil (standard)	8" waterproof Monoloop | Audio Output	Internal speaker & 3.5mm headphone jack. Visual Display	60mm x 36mm (2.36" x 1.42") LCD | Depth Indication	3 level icon | Detect Modes	2 | Discrimination	4 Find icons  Nail, Foil, Ring, Coin Audio tone	Low, High | Ground Balance	Automatic Tracking | Sensitivity Adjust	3 Levels Battery	4 x 1.5V AA Alkaline/Carbon/Lithium or NiMH/NiCad (not included). | Low battery alert	Audio & visual alert | Length	Collapsed: 21.9 in / 555 mm Extended: 51.4 in / 1305 mm | Weight	2.2 lbs / 1.0 kg | Warranty	2 years