- Compact, rugged and lightweight, the most complete GPS eTrex range is ideal for any outdoor activity. Its high sensitivity GPS receiver maintains signals even in wooded areas and between tall buildings and has a bright color screen, barometric altimeter, electronic compass, microSD card slot and automatic calculation of routes. - Unit Dimensions (Width / Height / Depth): 10.7 x 5.6 x 3.0 cm - Screen size (Width / Height): 3.3 x 4.3 cm - Resolution (Width / Height): 176 x 220 pixels - Type: TFT 256 Color - Weight: 156 g with batteries - Battery: 2 AA batteries (not included) - Battery life: 25 hours - Waterproof: Yes (IPX7) - Float: No - High-sensitivity receiver: Yes - Computer interface: USB - RoHS version available: Yes