Features: ALL METAL DISC Mode: ALL METAL mode is used to find all types of metal objects in the ground. And DISC mode for eliminating unwanted and trash metal objects(e.g. nails, foil, pull-tabs) from detection. Headphone Jack: detector designed with 1/4 headphone jack for connecting with headphones(NOT included) with a stereo plug. Using headphones not only allows you to hear subtle changes in the sound more clearly, but also prevents the sounds from bothering bystanders. Waterproof Double-D Search Coil: allow you to operate in the shallow water, 12-inch large size with high accuracy for more stable performance. Ground Balancing: help to cancel the unwanted signals coming from the ground minerals while still detecting the signals from buried metal objects. 2-tone Audio Discrimination: once the metal finder detect something, it will sound 2 types of sound for different types of metal. Sensitivity Adjustment: after you become familiar with how the detector works, it is important to fine tune the sensitivity to get better detecting effect. Pinpointing the Target: after detecting the metal, the function help to accurately pinpointing the target to make digging easier. Easy to Assemble Operate: metal detector is easy to assemble, no tools are required. When detecting, keep the search coil parallel to the ground, then sweep it from side to side slowly. Height Adjustable: user-friendly stretchable rod, allows the operator of different heights to adjust the detector to the desired position for comfortable using. Power Supply: just powered by 1pcs 9V 6F22 alkaline battery, or the nickel metal hydride rechargeable battery, low power consumption, low power indicator. Wide Applications: apply in gold/silver/copper/iron/metal/coin/cultural relics detection in desert, beach, grassland, archaeological site, etc.