The colorful Gekos are the smallest and lightest waterproof GPS units to hit the market. Both the Geko 101and the Geko 201 are inexpensive and offer sleek, thin designs with simple operating systems. With its sun-yellow case, the economical Geko 101 is perfect for navigational novices. Features such as one-touch waypoint marking make it a snap to use. Easily maneuver from one waypoint to the next using its 250-waypoint storage capacity with symbols, and pan along your track with PanTrack. Easy operation: five buttons for one-hand use Weight: only 3.1oz with batteries Compact size: 1.9" W x 3.9" H x .96" D High-contrast display: 64 x 100 pixels Battery life: 12 hours on 2 AAA batteries Waypoint/Route storage: 250/0 Automatic track storage: 3,000 trackpoints with PanTrack™ and TracBack® Waterproof: submersible for 30 minutes in one meter of water (IEC 529 IPX7 standards) Dimensions: 3.75" x 6.50" x 9.80" Weight: 4.10