Deluo Marine GPS Navigation System with FUGAWI Marine ENC Software Marine GPS for transforming any computer into a high-powered chart plotter, comes with Fugawi Marine ENC navigation software Receiver is fully waterproof, and boasts anti-UV, anti-acidity and anti-alkalinity protection that makes it perfect for marine installations 13 parallel tracking channels with fast TTFF (time-to-first-fix) capable of acquiring the weakest of signals with a low power consumption Features automatic cold start, interference filter against major VHF channels, and WAAS compliance with EGNOS support Weighs only 8.5 ounces, measures 3.3 x 2.4 inches (diameter x height), and is backed by a manufacturer's 1-year warranty