This is the Suunto Eon Core Scuba Diving Computer with USB Download Cable Features: Water resistance 80 m (262 ft) Customizable color screen with large digits Rechargeable battery, 10 - 20 h per charge Wireless mobile connectivity User-updatable software Gauge/Air/Nitrox/Trimix/CCR (fixed point) Multiple tank pressure reading (with Suunto Tank POD) Tilt compensated 3D digital compass The compact Suunto EON Core is a great dive companion whether you&';re just beginning diving or are an active diver exploring new depths. The key details of your dive are easy to read from the clear color display with large, prominent digits. This fully-featured and customizable dive computer is your reliable partner, whether you&';re exploring shipwrecks or admiring the colorful marine life.