"The Garrett Axiom Metal Detector with MS-3 Headphones gives you absolute performance on gold of all sizes. Featuring ULTRA-PULSE Technology, advanced pulse timings provide enhanced sensitivity and complete versatility in the most extreme mineralized soils and in saltwater. Choose from 4 settings, each ideally engineered for finding all types of gold, from larger nuggets to sub-gram pickers. The Axiom also includes TERRA-SCAN, an advanced system that provides independent dual-channel ground balance that covers the full range of mineralization, from heavily mineralized magnetic ground, to saltwater, and everything in between. The IRON CHECK feature helps you audibly identify iron targets with the Axiom when using a DD search coil. This Garrett metal detector has a built-in, high-capacity lithium-ion battery for a battery life of about 16 hours on full charge, about double the length offered by standard prospecting detectors. Extend your time in the field by about 6 hours with the included Booster Pack that holds 8 AA batteries. PWM Audio or VCO Audio options. The Garrett Axiom Metal Detector with MS-3 Headphones includes: Axiom pulse induction detector, MS-3 wireless headphones, 13"" DD search coil, 11"" mono search coil, soft travel pack, Axiom battery booster pack, and charging cables. Excellent performance on all sizes of gold ULTRA-PULSE Technology enhances sensitivity 4 settings, all geared toward finding gold TERRA-SCAN provides dual-channel ground balance IRON CHECK identifies iron targets Long-lasting lithium-ion rechargeable battery Booster Pack holds 8 AA batteries for extended battery life Includes MS-3 wireless headphones Comes with DD and mono search coils Soft travel pack"