Meet the reliable Logitech M240 Silent Bluetooth mouse. Pair and Play - With a fast, easy, wireless Bluetooth connection without dongle or connection. Ultra-quiet mouse with 90% reduced click noise, making noise and distractions a thing of the past (1) Up to 18 months battery life thanks to auto sleep. The comfortable, travel-friendly little mouse fits in any pocket. The ambidextrous design supports both your right and left hand in a natural position. The reliable Bluetooth mouse works at a distance of up to 10 m/33 feet from your computer (2) (1) Left click dBA level measured by independent lab at 1m. Compared with Logitech M185. (2) Battery life may vary based on user and computing conditions). (3) Actual wireless range may vary based on use, settings, and environmental conditions. (4) Based on throughput computation in bits/second combining speed and accuracy averaged for all devices participating in the study. Logitech Ergonomic Lab study on 23 participants in (Oct / 2019) with two Logitech standard mice and two standard, embedded trackpads. (5) Based on bits/second for averaged movement time for all devices participating in the study. Logitech Ergonomic Lab study on 23 participants in (Oct / 2019) with two Logitech standard mice and two standard, embedded trackpads. (6) Based on independent sales data (in units) aggregated for Logitech mice and keyboards from major global markets including Canada, China, France, Germany, Indonesia, Republic of Korea, Russian Federation, Sweden, TW, Turkey, UK, US (Jun'21-May'22 period). Retail channel only. (7) Excludes printed wiring assembly (PWA) plastics and packaging.