GPS UNIT HAS TURN BY TURN FEATURE; ANTI-THEFT FEATURE; NUROUTE TECHNOLOGY; MICRO SD CARD SLOT; WIDTH: .35 INCHES; HEIGHT: 2.9 INCHES; LENGTH: 4.80 INCHES; 4.3 INCH SCREEN; RESOLUTION IS 800X480 PIXELS; WEIGHT: 4 OUNCES; RECHARGABLE LITHIUM ION BATTERY; BATTERY LIFE IS UP TO 4 HOURS; HOLDS UP TO 1000 WAYPOINTS;