Logitech M240 Silent (910-007119)

Logitech M240 Silent (910-007119) M240 Logitech Bluetooth Mouse - GRAPHITE - SILENT L910-007119 Weight (with batteries): 73.8 g Silent Touch Technology - 90% noise reduced Left/Right-click, Middle click 1Left click dBA Sensor Technology - Smooth optical tracking DPI range : 400-4000, Steps of 100 DPI Number of Buttons: 3 (Left/Right-click, Middle click) Scroll Wheel: Yes, 2D, optical Battery life: 18 months 2Battery life may vary based on user and computing conditions. Battery Details: 1 x AA (included) Connection Type: Bluetooth Low Energy Technology Wireless range: 10 meters 3Wireless range may vary based on user, environmental and computing conditions. Connect / Power: Yes, on/off switch