Faria Beede Instruments Dress Speedometer Gps Studded 4" 60 Mph White. GPS information is gathered from an internal GPS antenna. No external antenna required. The Faria GPS Speedometer uses a highly accurate 48 channel GPS receiver. You can be sure that the Faria GPS Speedometer is giving you the most accurate GPS information available on the market today. Features of Faria Beede Instruments Dress Speedometer Gps Studded 4" 60 Mph No external GPS antenna required Available in multiple Speed ranges (15-120 MPH 25-200 KPH and 15-100 Knots) Premium LED back-lit dials Available LCD displays Compass Rose heading and Actual heading (COG) Ultra fast Satellite acquisition time (TTFF) 1 second from Hot start Package Contents: Faria Beede Instruments Dress Speedometer Gps Studded 4" 60 Mph Faria Beede Instruments 33147: Dress Speedometer Gps Studded 4" 60 Mph White