Logitech M186 Wireless Mouse Office Power Saving USB Laptop Desktop Computer Universal 1. Streamlined, ergonomic, left and right symmetrical design, in line with the shape of the finger groove, fit the curve of your hand, round, comfortable feel 2. Wireless connection, no need to install software, working range up to 25 meters, plug the receiver into the computer to enjoy the remote control experience 3. The tiny receiver can stay on the computer without frequent plugging and unplugging 4. If you need to remove the receiver, there is a receiver storage slot in the mouse, so you don't have to worry about the receiver being too small to find. 5. Laser level tracking 1000DPI, more accurate tracking 6. Super long battery life of 1 year, eliminating the trouble of frequent battery replacement 7. Intelligent battery management system, low battery indicator eliminates the possibility of accidental power failure 8. OnOff switch to save more power, smart sleep mode to extend battery life 9. Compact design, easy to carry with you, it can be easily packed into a bag whether at home, work or travel Product parameters: 1. Interface: USB 2. Number of keys: 4 3. Ergonomics: Yes 4. Transmission method: wireless 5. Working mode: photoelectric 6. Battery type: 1 AA battery (not included) 7. Weight: 75.2g 8. Dimensions: 99x60x39mm 9. The bottom adopts the design concept of no light, no light display 10. Switch: Yes 11. Storage bin: yes Packing list: mouse x 1 Wireless receiver x 1