Easily Support 3 Devices: Rapoo Bluetooth 3.0 Wireless 2.4G Technology Wireless Mouse supports 3 devices, two via Bluetooth and the third via a 2.4 GHz USB dongle. With one mouse, you can easily switch devices with a simple button. Please note that you cannot control three devices simultaneously. Silent Design: This silent wireless mouse features 90% noise reduction. Silent clicks eliminate the annoyance of disturbing others, allowing you to focus better on your work. Enjoy peace in your browsing and work experience. Anti-fingerprint and sweat-proof shell, breathable and moisture-wicking, refreshing and cool. For Laptop/Computer/MacBook/Notebook/ChromeBook. ERGONOMICS & PRECISION OPTICS: The symmetrical shape is designed for left or right hand, and the flat curved shape fits the curve of the hand. Fatigue relief, suitable for all-day use. A high-speed optical engine allows the mouse to be used on a variety of surfaces, such as leather, fabric, paper, desks, wood, or resin, without the need for a mouse pad. Convenient to Extend Battery Life: Rapoo uses low-power and energy-saving design with a power switch to extend battery life. Under normal conditions, the battery life is 9 months. Small and portable, easy to carry, suitable for office and business trips or travel.