The K40 is the first handheld remote control with dual encoders, designed for the efficiency and comfort of artists. Its "runway circle" shape is ergonomic and highlights the characteristics of Huion's product features.The function interface is simple and easy to use, with an OLED real-time display of the functions of the 8 programmable keys and the ability to preset up to 48 functions at 6 levels, providing users with a more efficient working experience.