Manufacturer Description For boaters and watersports enthusiasts who want to run with the best, the rugged GPSMAP 78s features a 3-axis compass, barometric altimeter, crisp color mapping, high-sensitivity receiver, new molded rubber side grips, plus a microSD™ card slot for loading additional maps. And it floats! Explore GPSMAP 78s comes with built-in worldwide basemap, so you can navigate anywhere with ease. And, like the rest of the 78-series, 78s is IPX7 waterproof and even floats in water. Get Your Bearings GPSMAP 78s has a built-in 3-axis tilt-compensated electronic compass, which shows your heading even when you're standing still, without holding it level. Its barometric altimeter tracks changes in pressure to pinpoint your precise altitude, and you can even use it to plot barometric pressure over time, which can help you keep an eye on changing weather conditions. Share Wirelessly With GPSMAP 78s you can share your waypoints, tracks, routes and geocaches wirelessly other compatible device users. Now you can send the location of your favorite fishing spot to a friend to find. Sharing data is easy. Just press "send" to transfer your information to similar units. Keep Your Fix With its high-sensitivity, WAAS-enabled GPS receiver and HotFix™ satellite prediction, GPSMAP 78s locates your position quickly and precisely and maintains its GPS location even in heavy cover and deep canyons. The advantage is clear — whether you’re in deep woods or just near tall buildings and trees, you can count on GPSMAP 78s to help you find your way when you need it the most. Add Maps Adding more maps is easy with Garmin's wide array of detailed marine, topographic and road maps, available on microSD card. Conveniently plug in BlueChart® g2 preloaded cards for a great day on the water or City Navigator NT® map data for turn-by-turn routing on roads (see maps tab for compatible maps). The card slot is located inside the waterproof battery compartment, so you don't have to worry about getting it wet. GPSMAP 78s also supports BirdsEye™ Satellite Imagery (subscription required), that lets you download satellite images to your device and integrate them with your maps. In addition, the 78s is compatible with Custom Maps, free software that transforms paper and electronic maps into downloadable maps for your device. Get Connected You've been busy exploring and now you want to store and analyze your activities. With a simple connection to your computer and to the Internet, you can get a detailed analysis of your activities and send tracks to your outdoor device using Garmin Connect™. This one-stop site offers an activity table and allows you to view your activities on a map using Google™ Earth. Explore other routes uploaded by millions of Garmin Connect users and share your experiences on Twitter® and Facebook®. Getting started is easy, so get out there, explore, and share. Find Fun GPSMAP 78s supports geocaching GPX files for downloading geocaches and details straight to your unit. By going paperless, you're not only helping the environment but also improving efficiency. GPSMAP 78s stores and displays key information, including location, terrain, difficulty, hints and descriptions, which means no more manually entering coordinates and paper print outs! Simply upload the GPX file to your unit and start hunting for caches. Slim and lightweight, 78s is the perfect companion for all your outdoor pursuits. GPSMAP 78s: Colorful maps, durable design and buoyant – everything a mariner needs.What's Included In The Box?The Garmin GPSMAP 78s ships with the following items included: Garmin GPSMAP 78sGarmin 10.5 inch LanyardGarmin USB PC Interface CableQuick Start ManualFeatures and TipsHere is a list of GPSMAP 78s features, along with a few user tips. Automatic routing (turn by turn routing on roads): yes (with optional mapping for detailed roads)Electronic compass: yes (tilt-compensated, 3-axis)Touchscreen: noBarometric altimeter: yesCamera: noGeocaching-friendly: yes (paperless)Custom maps compatible: yesPhoto navigation (navigate to geotagged photos): yesOutdoor GPS games: noHunt/fish calendar: yesSun and moon information: yesTide tables: yesArea calculation: yesCustom POIs (ability to add additional points of interest): yesUnit-to-unit transfer (shares data wirelessly with similar units): yesPicture viewer: noGarmin Connect™ compatible (online community where you analyze, categorize and share data): yesPhysical & Performance:Unit dimensions, WxHxD: 2.6" x 6.0" x 1.2" (6.6 x 15.2 x 3.0 cm)Display size, WxH: 1.6" x 2.2" (4.1 x 5.6 cm); 2.6" diag (6.6 cm)Display resolution, WxH: 160 x 240 pixelsDisplay type: transflective, 65-K color TFTWeight: 7.7 oz (218.3 g) with batteriesBattery: 2 AA batteries (not included); NiMH or Lithium recommendedBattery life: 20 hoursWaterproof: yes (IPX7)Floats: yesHigh-sensitivity receiver: yesInterface: high-speed USB and NMEA 0183 compatibleRoHS version available: yesMaps & Memory:Basemap: yesAbility to add maps: yesBuilt-in memory: 1.7 GBAccepts data cards: microSD™ card (not included)Waypoints/favorites/locations: 2000Routes: 200Track log: 10,000 points, 200 saved tracks Specifications General1. Unit dimensions, WxHxD:2.6in x 6.0in x 1.2in (6.6 x 15.2 x 3.0 cm)2. Display size, WxH:1.6in x 2.2in (4.1 x 5.6 cm); 2.6in diag (6.6 cm)3. Display resolution, WxH:160 x 240 pixels4. Display type:transflective, 65-K color TFT5. Weight:7.7 oz (218.3 g) with batteries6. Battery:2 AA batteries (not included); NiMH or Lithium recommended7. Battery life:20 hours8. Waterproof:Yes (IPX7)9. GPS-enabled:✔10. Floats:✔11. High-sensitivity receiver:✔12. PC interface:USB13. RoHS version available:✔14. Preloaded maps:✘15. Map coverage area:North America16. Ability to add maps:✔17. Street Map Compatible:✔18. Topographic Map Compatible:✔19. Marine Software Compatible:✔20. Bluechart g2 Map Compatible:✔21. Bluechart g2 Vision Map Compatible:✘22. Built-in memory:1.7 GB23. Accepts data cards:microSD data card24. Waypoints/favorites/locations:200025. Additional:High Speed USB26. Garmin Connect™ compatible (online community where you analyze, categorize and share data):✔27. Widescreen✘28. Custom Maps Compatible✔ Automotive29. Routes:20030. Basemap:✔31. Voice prompts (e.g. "Turn right in 500 ft."):✘32. Speaker Location:Internal Buzzer33. Speaks street names (e.g. "Turn right ON ELM STREET in 500 ft.") :✘34. Speech recognition (navigate with voice commands):✘35. 3D map view:✘36. Automatic routing (turn by turn routing on roads):✔37. Auto sort multiple destinations (provides most direct route):✘38. Auto re-route (fast off-route and detour recalculation):✘39. Choice of route setup (faster time, shorter distance, off road):✔40. Route avoidance (avoid highways, tolls etc.):✘41. Custom POIs (ability to add additional points of interest):✔42. Hands-free calling with Bluetooth® wireless technology:✘43. FM traffic compatible:✘44. XM® Navtraffic (includes basic weather) & Radio for U.S. compatible:✘45. MSN® Direct for U.S. compatible:✘46. Where Am I? feature (find closest hospitals, police & gas stations, nearest address & intersection):✘47. Car locator feature (marks position when removed from windshield mount):✘48. MP3 player:✘49. Audio book player:✘50. Picture viewer:✘51. Configurable vehicle icons (select car-shaped icons for map navigation):✘52. World travel clock, currency & measurement converter, calculator:✘53. Touchscreen:✘54. Qwerty or ABC keyboard (choose keyboard layout):✘55. Antenna Type:Internal56. External Antenna Jack:MCX57. Remote control:✘58. FM transmitter:✘59. Headphone jack/audio line-out:✘60. Audio/video input/output:✘61. Dead reckoning:✘62. Garmin Lock™ (anti-theft feature):✘63. Automotive-friendly:✘64. Motorcycle-friendly:✘65. Lane Assist✘66. Data Services with Bluetooth Technology✘67. Speed Limit Indicator✘68. Lifetime Traffic✘69. Lifetime Maps Included✘ Outdoor70. Track log:10,000 points, 200 saved tracks71. Electronic compass:Yes (3-axis)72. Barometric altimeter:✔73. Hunt/fish calendar:✔74. Sun and moon information:✔75. Tide tables:✔76. Area calculation:✔77. Geocaching mode:✔78. Outdoor GPS games:✔79. Unit-to-unit transfer (shares data wirelessly with similar units):✔80. Photo navigation (navigate to geotagged photos)✔ Marine81. Portable✔82. Marine Auto Guidance✘83. Radar compatible✘84. Sonar compatible✘85. CANet® compatible✘86. Marine Network™ compatible✘87. Supports AIS (tracks target ships' position)✘88. Supports DSC (displays position data from DSC capable VHF radio)✘89. Audible alarms✔90. XM WX Weather & Radio for U.S. compatible✘91. NMEA input/outputYes (NMEA 0183)92. Dual-beam sonar capable✘93. Dual-frequency sonar capable✘94. Split-screen zoom✘95. A-scope (real time display of fish passing through transducer beam✘96. Whiteline (indicates hard or soft bottom)✘97. Water temperature sensor included✘