ETREX 32x Handheld GPS with 2.2″ Color Display and Pre-installed TopoActive Map Specifications: 1. Dimensions: 5.4 x 10.3 x 3.3 cm 2. Weight: 141.7 g with batteries 3. Screen size: 3.3 cm x 4.4 cm 4. Resolution: 240 x 320 pixels 5. Display: 2.2″ transflective, 65K colour TFT 6. Water rating: IPX7 7. Power: 2 x AA batteries. Either NimH or lithium rechargeable is suitable 8. Compass: Yes, 3 axis tilt compensated 9. Altimeter: Yes, barometric 10. Connections: 1x mini USB 11. Memory/History: 8GB with an expandable option via SD card. , ,