Description Physical Specifications: Dimensions: 2.9″ x 5.7″ x 1.4″ (7.48 x 14.42 x 3.64 cm) Weight: 10.2 oz (289 g) with included lithium-ion battery pack; 11.7 oz (333 g) with 3 AA batteries (not included) Waterproof Rating: IPX7 Touchscreen: Yes Display Specifications: Display Type: Bright, transflective 65K color TFT, dual-orientation touchscreen; sunlight readable Display Size: 2″W x 3.5″H (5.06 x 8.93 cm); 4″ diag (10.2 cm) Display Resolution: 272 x 480 pixels Battery Information: Battery Type: Rechargeable lithium-ion (included) or 3 AA batteries (not included); NiMH or Lithium recommended Battery Life: Up to 16 hours (lithium-ion) Up to 22 hours (AA batteries) Memory and Interface: Memory/History: 4 GB Interface: High-speed mini USB and NMEA 0183 compatible Please let me know if you need any additional information or details.
