Description: Super Long Battery Lifewith AAAA battery supports up to 1500 hours working time. Saves power by automatically turning off if left idle. High Accuracy, Low Latencywith 1024 pressure points is designed for writing, drawing, and notes taking. Instant response, low latency, truly accurate handwriting reproduction. Easy to useNo pairing required, skip the Bluetooth pairing process, just turn on and start using. Easy to hold, streamlined shape and 9.9mm diameter, you won't feel tired for using it the whole day. Replacement pen tipsEquips HB-type pen tip and 2 spare 2H-type pen tips, you can change it as per your preference. Palm RejectionSupport palm rejection function, feel free to rest their palm on the surface without interfering with the stylus use. Built-in Hotkeys, support erase and right-click function for easier use. Match Surface Devices Perfectlyis compatible with Surface Pro 3, Surface Pro 4, Surface Pro 5, Surface Pro 6, Surface Pro 7, Surface Go, Surface Book, Surface Book 2, Surface Studio 1st Gen, Surface Studio 2, Surface Laptop 1st Gen, Surface Laptop 2 Specification: Color: Black Silver Material: Aluminum Size: height 143.6mm Battery: 1 AAAA batteries required. (included) Working Time: 1500hours Package Includes: 1 piece of styluses pen(2 Pack) Note: Please contact us firstly if there are any problems with the product. The item's color may be slightly different from the pictures due to the light and screen setting difference. Please allow slight dimension error due to manual measurement.Thanks for your kindly understanding.