The Acer Active Stylus NP.STY1A.009 is a precise input device designed to enhance the user experience on compatible devices. Weighing only 12 grams and measuring 130 millimeters in length, this stylus is lightweight and portable, making it ideal for mobile use. It features two buttons that allow for user-friendly operation and expand functionality. The stylus comes with two AAAA batteries, ensuring reliable power supply. The use of batteries allows for flexible handling without the need for complicated recharging. The Acer Active Stylus is part of the RE100 program, indicating the manufacturer's commitment to sustainability. This product is an excellent choice for anyone seeking precise input and intuitive control on their devices.