BUFFALO Bluetooth 3.0 Compatible 1600dpi BlueLED Mouse NFC tag equipped model (Pairing can be done simply by holding it up, depending on the compatible device) DPI: You can adjust the cursor movement speed with a resolution of 1600dpi. LED: Equipped with a BlueLED sensor, smooth operation is possible on various materials such as glass. Pairing: Pairing with Bluetooth-connected devices is possible by long-pressing the connect button on the back. - Color: Black - Buttons: Smooth scroll wheel - Size: 60 (width) x 100 (height) x 35 (depth) mm - Weight: Approximately 58g (excluding batteries) - Battery: 1 AA battery ※ Batteries are not included. There are no noticeable scratches or stains, but there is a feeling of use such as fine scratches. We hope you will use it with your understanding.