Atomic Aquatics Cobalt Dive Computer Console, with Digital Compass & Quick Disconnect Full Function Air Integrated Air/Nitrox Dive Computer Nitrox Programmable (21-100%) Rechargeable Lithium ion battery that can be quickly recharged with the included AC charger or through any USB port State of the art high contrast full-color OLED (Organic Light Emitting Diode) brightly colored screen displayed on a black background Navagation screen is divided into three sections which include everything a diver needs at a glance