Garmin Astro 220 DC-30 DC30 GPS Physical & Performance: Unit dimensions, WxHxD: 2.3" x 6.3" x 1.3" (5.7 x 15.9 x 3.2 cm) (Astro 220) Display size, WxH: 1.5" x 2.2" (3.8 x 5.6 cm) Display resolution, WxH: 160 x 240 pixels Display type: 256-color TFT Weight: 6.5 oz (185 g) without batteries Battery: 2 AA batteries (not included) Battery life: 24 hours Waterproof: yes (IPX7) High-sensitivity receiver: yes Interface: USB
