Gemini is a dual-screen e-ink book that focuses on recording, writing, and reading. It is a new fusion of "pen and book", 360 ° adjustable 7.8-inch dual-E-INK screen, which realizes PC keyboard input, large-screen reading and convenient screen separation. The microphone module is integrated on the stylus to make the voice input more flexible. The detachable microphone module allows the user to clip it on the collar and encounter some special situations. Physical turntables and buttons make product interactions more direct and simpler. Gemini provides users with a more effective experience to cope with different learning and working scenarios.