Garmin Oregon 450

not included Weight 6.8 oz / 192.7 g with batteries Dimensions 2.3 in x 4.5 in x 1.4 in / 5.8 cm x 11.4 cm x 3.5 cm Display size 1.53 in x 2.55 in / 3.8 cm x 6.3 cm, 3 in diag / 7.6 cm Display resolution 240 x 400 pixels Display type transflective color TFT touchscreen Battery 2 AA batteries NiMH or Lithium recommended Battery life 16 hours Waterproof yes (IPX7) Floats no High-sensitivity receiver yes Interface high-speed USB and NMEA 0183 compatible