The R3 controller is compact and lightweight Packed with powerful features, it allows easy control anytime, anywhere Rich Buttons, All-in-One Control 2 joysticks + 12 buttons + 4 shoulder buttons, combined with flexible combination keys, offering multi-functional control for effortless all-around operation Comfortable Grip, Smart Control, Effortless Handling Streamlined handle design fits your palm for a comfortable grip; Phone mount design, paired with the Unitree official app, delivers precise control for an easier operation Vibration or Sound Effects, Immersive Experience Equipped with a built-in vibration motor and buzzer, offering optional vibration or sound feedback for an immersive interactive experience that provides a realistic control feel The Unitree R3 Controller is a versatile, advanced remote control device designed for seamless operation across the entire Unitree Robotics product line. Its compatibility spans a wide range of robot models, making it an essential tool for users seeking unified control over multiple devices. ✅ Compatibility The R3 Controller is officially compatible with the following Unitree robot models: Go2 Go2-W G1 H1 B2 This broad compatibility ensures that users can effortlessly switch control between different robots without the need for multiple controllers.