SKY RC GC-401 Gyro for RC Cars. Any Race Track. Accuracy Control. Smooth Operation. GC-401 Three Sensor Drive Modes L-DRIVE: More flexible and good for short distance and curved track S-DRIVE: Standard mode H-DRIVE: High curve, suitable for slipping and long straight distance track With all the inherited advantages of GC301, GC401 introduces three drive modes, which are selectable by pushing the button. Ultra-small Size & Lightweight GC-401 gyro is leading the industry with a 21x21x11mm size and a weight of 3.6g. It can be easily mounted on all types of RC vehicles. Correction of RC Vehicle Steering GC-401 allows the racing car to travel in the specified direction and provides more accurate, stable, and more controllable steering at high speed. Specifications Gyro Sensor - Vibration Structure Gyro Operating Voltage - 4-8.4V Current Drain - 25mA Operating Temperature Range - -10℃ to +45℃ Weight - 3.6g Size Length ： 21mm Width ： 21mm Height ： 11mm