?With a larger torque and a better stability・ the Zhiyun Z1-Rider Pro Upgraded Version Multi-functional 3-Axis Handheld Brushless Gimbal for GoPro 3 / 4 / Xiaoyi features an upgraded brushless motor and servo motor control algorithm to deliver a higher performance. An extra 1/4 screw mount adds more convenience for installation. Hidden wires create a neat and tidy look. Compact and lightweight・ it won¨t add extra burden and thus is easy to carry. And it is fully compatible with GoPro 3・ 4 cameras and Xiaoyi action camera. It surely is worth your investment!                                    Features            Upgraded design with a larger torque and a better stabilityUpgraded brushless motor and servo motor control algorithmAn extra 1/4 screw mount adds more convenience for installationHidden wires create a neat and tidy lookKeep the camera flat and stablePerfect for outdoor shooting usesCompact and lightweight・ won¨t add extra burdenCapable of charging GoPro cameras                                                            Specifications            Working Voltage    6.8V / 8.4V / 12.6V    <br>Working Current    50mA / 120mA / 2A    <br>Static Attitude Tracking Accuracy    +-0.01 / 0.04    <br>Motion Attitude Tracking Accuracy    +-0.1 / +-0.2 / +-0.5    <br>Pitch Angle    -180＜/ 0＜/ +180＜ Vertical    <br>Roll Angle    -45＜/ 0＜/ +35＜    <br>Heading Angle    -150＜/ 0＜/ +150＜Vertical    <br>Heading Angle    -50＜/ 0＜/ +50＜Horizontal    <br>Pitch Following Rate    1＜/Sec 50＜/Sec    <br>Heading Following Rate    1＜/Sec 80＜/Sec    <br>Battery    900mAh    <br>Working Temperature    -20≧ / 25≧ / 45≧    <br>Material    PC    <br>Weight    10.05oz / 285g    <br>Color    Black    <br>Dimensions    (2.64 x 3.78 x 3.46)" / (6.7 x 9.6 x 8.8)cm (L x W x H)    <br>                                                            Package Includes            1 x 3-Axis Handheld Camera Stabilizer1 x Camera Holder2 x M2.5x9mm Screws with Hand2 x M2.5x19mm Screws with Hand1 x 18350 LOPO Battery Charger2 x 18350 LOPO Battery1 x Micro USB Charger Cable1 x User Manual1 x Warranty Card1 x Certification