Mares Dragon MRS MV 12s Regulator Mission Puck Dive Computer Package Package Includes: Mares Dragon Ergo BC with MRS Plus Weight System Air-cell moves independently from harness for unmatched comfort, Back Protection System neutrally buoyant padding Mares Mission Puck Two Gauge Computer Console Imperial, Depth Display: 492' (150 meters) Altitude Adjustable, Operating Modes: Air, EAN and BT, Back Light Mares MV 12s Regulator 1st & 2nd Stage Yoke, Nitrox Compatible to 40%, Tri-material valve - maximizes performance, safety, and reliability Mares Alt Air Control Integrated Octo, Inflator integrated secondary air source, Vortex Assisted Design