1. With silent interpretation of energy, fashionable appearance can show personality, and delicate and lightweight, easy to load into the bag to accompany you around. 2. Warm modelling, comfortable feel: The design is ingenious, slim and light at the same time with intimate comfort. 3. Quiet and quiet or noisy, you can work freely without worrying about disturbing others. Familiar with the touch of keys, click sound reduced by about 90%, equipped with silent wide rubber roller. 4. Easy connection via compact USB receiver. 5. Easy to use in many scenarios: Rapid and accurate tracking can provide consistent and stable use experience.