AXIOM Wirelesss Package Axiom with 13"x11" DD Coil, 11"x7" Mono Coil & MS-3 headphones GOLD: BIG OR SMALL, GET IT ALL WITH AXIOM! Advanced pulse timings provide enhanced sensitivity and complete versatility in the most extreme mineralized soils and in saltwater. Choose from four settings, each ideally engineered for finding all types of gold, from larger nuggets to sub-gram pickers. Axiom’s advanced system provides independent dual-channel ground balance that covers the full range of mineralization, from heavily mineralized magnetic ground to saltwater, and everything in between. COLLAPSES TO 25 INCHES (63.5 CM) TERRA-SCAN IRON CHECK BUILT-IN, HIGH-CAPACITY LITHIUM ION BATTERY EXTREME BATTERY LIFE With about 16 hours on a full charge, Axiom’s built-in, high-capacity Lithium Ion battery provides twice the battery life offered by some prospecting detectors! EXTEND YOUR TIME IN THE FIELD! Axiom’s booster pack holds 8 AA batteries, either standard or rechargeable. Use this pack to get another 6 hours of battery life in remote areas. 2 AUDIO TYPES Pulse rate 1500hz adjustable Freq scan auto emi cancellation ZLink wireless headphone system Backlight Ground balance auto dual channel Ground balance readings dual independant numbers Ground balance window Ground track off, slow,medium,fast Iron check Volume control Threshold control Tone control Audio type adjustment Sensitivity adjustments 8 Water resistence Waterproof stem coil Water rain proof control box 6 available coils to upgrade with Length 156cm down to 63.5cm. Weight 4.2 lb to 4.7 lb Rechargeable battery Battery condition indicator 2 Years warranty.