Sensitive 20 channel USB GPS mouse with new SiRF STAR III chip set. EGNOS/WAAS support. Inc.1.6 m USB cable. Magnetic mounting and waterproof. All in one view 20-channel processing. Very fast first fix after starting up. NMEA-0183 output : GGA, GSA, GSV, RMC, VTG, GLL. Recommended GPS for on-board !