2. Select pointer speed (Slow, Medium, or Fast). Click MOB (Man Overboard) to mark your current location and set a course back to it. Specifications • Size: 115 H mm x 66 mm W x 37 mm D (4.5" x 2.6" x 1.5") • Weight: 100 g (3.5 oz), with battery • Case: waterproof to IEC 529-IPX-7 • Frequency: 2.46 GHz • Max Range: 6 m (20 ft); this value may vary slightly, depending on the installation of the chartplotter • Battery Life: 5 months when used 15 minutes per day 15 months shelf life • Operating Tem