Precise wireless mouse with Logitech SilentTouch technology. Comfortable, portable mouse for left-handed users. Accurate Logitech Advanced Optical Tracking on virtually any surface. SmartWheel scroll wheel with fast scrolling and precision mode. Two wireless connection options: Logi Bolt receiver or via Bluetooth. Logitech SilentTouch technology reduces 90% of click noise, creating a better, quieter environment. Side buttons can be customized to preferred commands if needed. Benefit from smarter scrolling, more comfort, and increased productivity. The Signature M650 features SmartWheel scrolling: scroll with utmost precision or high speed, depending on your current needs. Seamless wireless connectivity, quiet clicking, customizable side buttons, and a hand-friendly shape ensure high comfort and productivity throughout the entire workday. Wireless comfort: Bluetooth connection. Enjoy plenty of freedom of movement without the hassle of tangled cables: this input device establishes a wireless direct connection to your Bluetooth-enabled computer. Unlike other wireless devices, no USB receiver is needed, keeping your USB ports free for other peripherals. USB receiver for wireless comfort. Enjoy plenty of freedom of movement without the hassle of tangled cables: USB wireless input devices wirelessly connect to the receiver, which you plug into an available USB port. Logi Bolt receiver. This mouse supports Logitech Logi Bolt technology. This means you can pair not only the mouse but also up to six Logi Bolt-compatible devices with the same receiver. This keeps your computer's USB ports available for other uses. Another advantage is that you can easily connect input devices with a new Logi Bolt receiver if you lose your old one.