The Garmin GPSMAP 66s offers unparralled navigation support for off-road exploration in the Great British Outdoors. Arriving preloaded with TOPO PRO GB basemaps, the device also provides access to BirdsEye satellite imagery for accurate, photographic representations of the surrounding area. These can be downloaded to help find trails, campsites and set waymarks. The large colour display is easily readable in natural sunlight to help you plan and execute your route. If you meet obstacles along the way then the device\'s military-grade shock, heat and water-resistance will protect, just as the integrated LED torch and SOS beacon helps protect you. Never hike blind again.Multiple Global Navigation Satellite System - tracks your location and movements in a wider range of challenging environments than GPS alonePreloaded TOPO PRO GB 1:50k mapping - includes turn-by-turn navigation in GB national parks3” sunlight-readable colour display3-axxis compass and barometric altimeter locates with precision accuracyAccess to BirdsEye satellite imagery - direct-to-device download without annual subscriptionExpanded wireless connectivity - supports Active Weather forecasts and Geocaching LiveBluetooth compatible with Android and iOS smartphone devicesCompatible with Garmin Explore website and appSurvival features - includes LED flashlight and SOS beaconThermal, shock and water-resistantCompatible with night-vision gogglesDimension: 6.2cm x 16.3cm x 3.5cmDisplay resolution: 240 x 400pxMemory: 16GBBattery life: up to 16 hours (GPS mode) 1 week (Expedition mode)Weight: 230g