Walkera G-2D 2 Axis Brushless Camera Gimbal For Gopro 3. Support the GOPRO Hero3 video aux output. Support the power supply voltage reverse connection protection and voltage compensation. Support for motor drive side short circuit protection. Support initial pitch angle. Support the sensitivity parameters adjustment and the software 3 d posture display. So buy this product and Get 25% Off for Walkera G-2D 2 Axis Brushless Camera Gimbal For Gopro 3.