Logitech M240 silent Bluetooth Mouse - Off White - 2.4GHz / Bluetooth, Smooth Optical Tracking, 400-4000 dpi range, 3 buttons, Line-by-Line Scrolling, 18 months Battery LifeOverview:M240 SILENT BLUETOOTH MOUSEReliable Bluetooth mouse with comfortable shape and silent clickingFeatures:SILENT, COMFORTABLE, AND EASYMeet M240 Silent, the reliableBluetooth mouse that frees up your workspace, connects in seconds, and delivers ultra-quiet productivity that lasts. A sculpted, contoured shape and 18 months of battery life lets you focus on what you do best.QUICK, EASYBLUETOOTHM240 Silent connects in seconds with a reliable pair and playBluetoothconnection- no dongle or port required. Works with Windows, macOS, ChromeOS, Linux, Android.LESS NOISE, MORE FOCUSSilentTouch Technology reduces clicking sounds by 90% Left click dBA level measured by independent lab at 1m. Compared with Logitech M185 . but keeps the familiar clicking feel you know and love. So you feel every single click, but hear virtually nothing. Less noise, great performance- and your neighbors in the cafe will thank you.BATTERY LIFE YOU CAN COUNT ON18 months battery life with auto sleep, so you go longer between battery changes. Battery life may vary based on user and computing conditions. You might just forget about batteries- a single AA batteries are pre-installed.QUALITY YOU CAN RELY ONThe mouse is built using the same high quality standards that have made Logitech the global leader for mice and keyboards 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, Taiwan, Turkey, UK, US (July 21 - July 22 period). Retail channel only.COMFORTABLE SHAPE, COMPACT DESIGNStay productive longer with the comfortable, contoured shape that follows the natural curve of your hand. Compact and wireless, the mouse fits easily with your laptop in a bag- so you can take it anywhere you work. M240 Silent is designed to be equally comfortable for both left- and right-handed users.EASY NAVIGATION, PRECISE CONTROLNavigate easier with a controlled line-by-line scrolling experience. No more annoying missed clicks - enjoy smooth and accurate cursor control on almost any surface.INCREASED PRODUCTIVITYGet more done by adding M240 Silent to your laptop. According to a recent study, laptop users who chose this mouse over a touchpad were 50% more productive 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 four Logitech standard mice and two standard, embedded trackpads and worked 30% faster 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 four Logitech standard mice and two standard, embedded trackpads.RECYCLED PLASTICSThe plastic parts in M240 Silent include certified post consumer recycled plastic - 48 % for graphite and 37% for Off-White and Rose Excludes printed wiring assembly (PWA) plastics, and packaging.- to give a second life to end-of-life plastic from old consumer electronics and help reduce our carbon footprint.CERTIFIED CARBON NEUTRALM240 Silent is certified carbon neutral. This means the carbon impact of the product and packaging has been reduced to zero due to Logitech investment in carbon-offsetting and removal projects.DECADES OF DESIGN EXCELLENCEWe bring over 25 years of expertise and innovation creating mice of various sizes and shapes that provide an extra degree of comfort. Our solutions are meticulously crafted to fit right- or left-handed users, making it easier to find the product thats right for you.Specifications:Mouse Dimensions Height: 99 mmWidth: 60 mmDepth: 39 mmWeight (with batteries): 73.8 gSilentTouch Technology 90% noise reduced Left/Right-click, Middle click.Left click dBA level measured by independent lab at 1m. Compared with Logitech M185.Sensor Technology Smooth optical trackingNominal value: DPI rangeDPI range: 400-4000, Steps of 100 DPIButtons Number of Buttons: 3 (Left/Right-click, Middle click)Scrolling Line-by-line scrollingScroll Wheel: Yes, 2D, opticalBattery life Battery life: 18 months. Battery life may vary based on user and computing conditions.Battery Details: 1 x AA (included)Connectivity Connection Type: Bluetooth Low Energy TechnologyWireless range: 10 meters. Wireless range may vary based on user, environmental and computing conditions.Connect / Power: Yes, on/off switchOptional software Supported by Logi Options+ on macOS 11 or later and Window 10, 11 or laterSustainability Off white plastics: 37% post-consumer recycled material .Excludes printed wiring assembly (PWA) plastics, and packaging.Graphite plastics: 48% post-consumer recycled material Excludes printed wiring assembly (PWA) plastics, and packaging.Rose plastics: 37% post-consumer recycled material .Excludes printed wiring assembly (PWA) plastics, and packaging.Certified carbon neutralPart Number Off-White : 910-007120Rose : 910-007121Graphite : 910-007119In the Box Mouse1 AA battery (pre-installed)User documentation