Rapoo M300 is Multi-Mode Wireless Mouse(BT5.0 + 2.4GHz), realizes free switches between 2 devices. Simple & convenient to work from the desktop to the laptop. 【Silent Mouse & 5 Adjustable DPI】Rapoo silent wireless mouse features 90% noise reduction. Quiet clicks eliminate your worry of bothering others and allow you to better focus on your work. You can adjust 54 DPI values from 800/1000/1200/1600/2400, which is up to 2400 DPI. It can meet the accuracy of different screens. 【Long Battery Life & Convenient】This computer mouse implements low-power technology and a power-saving design to extend battery life,built-in 1 AA Battery support 12 months battery life under normal conditions. Portable compact size, easy to carry on for office and business trips or travel. With anti finger-print and sweat proof outer shell, smooth touch. Suit for Laptop/ Desktop/ NoteBook/ ChromeBook. 【Crafted for Comfort & Advanced Optical Tracking】Rapoo bluetooth mouse designed for right hand, flat radian fits the curve of the hand. Fatigue release, suitable for all day use. High precision optical engine, can without a mouse pad using the mouse on various surfaces like leather, cloth, paper, desk, wood or resin.