This is the Oceanic Veo 4.0 Scuba Diving Computer 4 Options Available Features: Computer Type Module, Wrist or Console Modes 4 Operating Modes: Air, Nitrox,Gauge, Free Push Buttons 2 User Interface Click Forward, Fast Scroll Nitrox Mixes 3 Gases to 100% O2 Algorithm Dual Algorithm Auto Altitude Adjustment Ascent Rate Monitor Safety Stop Adjustable with Timer Deep Stop On-Unit Log Capacity 24 Divesv PC Interface Optional Firmware Update Memory 50 hours Backlight Audible Alarm Diver Replaceable Batteries (CR2450) Warranty 2 years The sleek and slim VEO 4.0 is everything serious divers need and nothing they don&';t. Intelligent and capable for the most advanced dives while still maintaining Oceanic&';s outstanding level of affordability, Veo 4.0 is an entry level personal dive computer with slim wrist and console design that delivers unprecedented value and is packed with advanced features, including Bluetooth connectivity and integrated mobile experience through the DiverLog+ App. DIVERLOG MOBILE SOFTWARE The Veo 4.0 connects with Diverlog+ mobile software via Bluetooth 4.0. Control your settings, view log and profile data, add locations, notes, and even share dives via email, Facebook and more. Whether you&';re on the boat, on the beach or in your home.