WK-G006 from Walkera utilizes the AVCS (Angular Vector Control System) and is designed specifically for RC Helicopters. The integration of the sensor section and control circuit makes for an easy installation. FEATURES: Control system: Digital advanced PI (proportional integration). Gyro sensor: piezoelectric sensor. Operating voltage: DC 5V. Operating temperature range: -5 ~ +45 deg C. Dimension: 30 x 30 x 23mm. Weight: 18g. Functions: reverse switch, sensitivity trimmer, servo travel adjustment.