Logitech Silent Mouse M221 M221RO 1 piece

Catalog number: M221RO Features: ●The M221 reduces noise by over 90% (Comparing sound levels of Logitech M221 vs. Logitech M170. ●DBA of left click measured at 1m by an independent lab. ●) creating a quieter, more productive environment for you and those around you. ●Its small size and smooth cursor control make it easy to operate even in small workspaces or on cluttered desks. Specifications: ● Height (mm): 99 ● Width (mm): 60 ● Thickness (mm): 39 ● Number of buttons: 3 ● Batteries used: 1 x AA battery (included) ● Main unit (width x depth x height): 60mm x 99mm x 39mm ● Receiver (width x depth x height): 14.4mm x 18.7mm x 6.1mm ● Sensor: Optical ● Resolution: 1000dpi ● Total number of buttons (including tilt function): 3 ● Scroll wheel: Yes ● Battery: 1 x AA battery (included) ● Battery life: Up to 18 months ● Operating distance: Approximately 10m ● Wireless method: Advanced 2.4GHz wireless technology