The most tech-savvy diver will appreciate the i770R's cutting-edge ultra-bright TFT color screen and its wireless Bluetooth connectivity packaged into a robust, functional, and compact design. Monitor all your information with the easy-to-use interface and intuitive 3-button navigation. Wirelessly manage your dive data and settings on your smartphone via the computer's Bluetooth connectivity. After your dive share your memories, stats, photos, and dive site on social media all through the free DiverLog+ app. Stay ConnectedAfter your dive, Bluetooth connectivity lets you share your stats, location, memories, and photos on social media via the free DiverLog+ app on your smartphone (for iOS and Android)Ultra-bright Color ScreenThin Film Transistor (TFT) color screen with easy-to-use interface for perfect clarity under any conditions3-axis Full-tilt CompassEasy-to-read compass graphics with a compass-bearing lock and reciprocal heading for easy navigation. An alternate compass bar can be displayed on the primary dive screen with the touch of a buttonRechargeable Lithium BatteryLong-lasting, easily rechargeable batteryAlways Stay AccurateOur hoseless air integration and Gas Time Remaining algorithm provide calculations in real time for accurate gas measurementOne-Time Transmitter PairingPair your transmitter once, and it's paired for lifeVersatile Air CapabilityCompatible with four different transmitters and gas mixes on a single diveFour Operating ModesDive how you like with Air, Nitrox, Gauge dive modes, plus Free Dive (tracks calculations to allow switching between dive modes and free dive)Digital CompassIncludes north reference, return bearing lock, and declination adjustmentMemoryMaintains settings and calculations during battery changesIntuitive NavigationSingle-button access to last dive data (maximum depth and bottom time)Well LitEasy reading in low light conditionsIncreased SafetyAudible alarms and additional high-visibility LED warning light4 Gas ComputerAble to switch up to three gases underwaterUpdatable softwareUser-updatable software gives you long-term access to the latest features and upgrades via Bluetooth connectionWater ActivationWater activation feature gives you a worry-free start to your diveRugged FinishExtremely durable and resistant to abrasionAdvanced Watch FunctionsAlternate time zone, stopwatch, lap timer daily alarm, countdown timerHistory ModeHistory Mode lets you see your total dives, maximum depth, total dive hours, and lowest temperature. Records up to 24 divesNitrox Mix CapabilityUp to 100% O2. Mix up to 3 Nitrox gasesDeep StopOptional deep stop with countdown timerGo AnywhereSalt or freshwater dive selectionAltitude AdjustmentAutomatic altitude adjustment ensures an accurate profile Max Depth (Dive and Free Mode) 100m/330 ft Max FO2 setting 21% to 100% Multiple Gas yes Max PO2 1.1 to 1.6 Audible alarm yes Gauge Mode yes Freedive yes Safety Stop yes Deep Stop user set ON/OFF Logbook yes History mode yes Reset feature no Download yes Number of buttons 3 Fresh / Salt water select yes Temperature yes Algorithm Z+ Conservative factor Adj yes Activation (wet or button) yes Mounting option no ALT adjustable auto adj. Ascent rate indicator yes Plan mode yes Calendar yes Batt power indicator yes Display TFT Compass yes Shortcut screen yes Preview Screen yes Air integration yes Bluetooth yes Data Retention yes Set Audible ON/OFF yes Set Deep Stop On/Off yes Set Depth Alarm yes Set EDT alarm yes set N2BG alarm yes Set DTR alarm yes Set Safety stop Depth/Time yes Safety Stop Timer yes Set WET ON/OFF yes Set Units yes Set Backlight duration yes Set Max PO2 alarm yes Rechargeable Battery yes What’s in the box Download Cable NATO Wrist Band Bungee kit Lens Protector Quick Reference Card Digital Instruction Manual Paper Safety Reference DiverLog+ Brochure Diverlog+ DiverLog+ Mobile App (FREE!) Android | Iphone Need DiverLog Support? Contact DiverLog here Learn more about Diverlog+ here