Logitech Pebble Cobblestone Shape Thin 3-keys 1000DPI Mute Wireless Bluetooth Optical Mouse, Wireless Range: 10m 1. It is a portable mouse that is suitable for carrying around. The shape is smooth and gentle, the rounded design makes it feel comfortable and can be conveniently placed in a pocket or bag. 2. Familiar button feel, click sound is reduced by about 90%, equipped with a mute wide rubber roller, so that you can concentrate on work without affecting others. 3. Easily connect via Bluetooth or USB receiver, even connect two computers at the same time, with no dropped frames or delays. 4. Tracking quickly and accurately, the coffee shop desktop or bed provides a consistent and stable experience. 5. 18 months battery life, no need to worry about low battery, you can automatically enter sleep mode when you are idle to save power. Specification: 1. Mouse size (height x width x depth): 26.5x59x107mm. 2. Weight (with battery): 100g. 3. Nano receiver size (height x width x depth): 14.4 x 18.7 x 6.1 mm. 4. Receiver weight: 1.8g. Receiver system requirements: 1. Available USB port. 2. Windows 10 or higher, Windows 8, Windows 7. 3. MacOS X 10.10 or higher. 4. Chrome OS. 5. Linux Kernel 2.6+. Bluetooth system requirements: 1. Bluetooth low energy technology. 2. Windows 10 or higher, Windows 8. 3. MacOS X 10.10 or higher. 4. Chrome OS, Android 5.0 or higher. Technical specifications: 1. Sensor: High precision optical tracking. 2. Sensor resolution: 1000dpi. 3. Number of buttons: 3. 4. Roller: Mechanical roller. 5. Wheel button: Middle button. 6. Mouse support Unifying: Yes. 7. The receiver supports Unifying: No. 8. Battery life: 18 months. 9. Battery type: 1 AA battery. 10. Wireless operating distance: 10m. 11. Wireless technology: Logitech receiver or Bluetooth low energy technology. Package Contents: Wireless mouse x 1 Nano Receiver x 1 User Documentation x 1