Part Number920-010933DimensionsMX Keys for BusinessHeight: 131.6 mmWidth: 430.2 mmDepth: 20.5 mmWeight: 810 gMX Master 3S for BusinessHeight: 124.9 mmWidth: 84.3 mmDepth: 51 mmWeight: 141 gMX Palm RestHeight: 64 mmWidth: 420 mmDepth: 8 mmWeight: 180 gLogi Bolt USB ReceiverHeight: 18.7 mmWidth: 14.4 mmDepth: 6.1 mmWeight: 1.7 gPackagingHeight: 146 mmWidth: 452 mmDepth: 75 mmTechnical SpecificationsMX Keys for BusinessRechargeable Li-Po (1500 mAh) batteryKeyboard functions: Integrated numpad, arrow keys, microphone mute, talk-to-text and other customizable F-Keys, battery indicator, Caps Lock indicator1Microphone mute, talk-to-text and other customizable F-keys require Logi Options+ app available on Windows and macOS at logitech.com/optionsplus. Video conferencing app cannot be running in the background. Dictation feature is provided by Windows and macOS and currently available only in select languages and geographies.Smart backlighting: Hand proximity sensors turn the backlighting on. Ambient light sensors adjust backlight brightnessMX Master 3S for BusinessRechargeable Li-Po (500 mAh) batterySensor Technology: Darkfield high precisionButtons: 7 buttons (Left/Right-click, Back/Forward, App-Switch, Wheel mode-shift, Middle click), Scroll Wheel, Thumbwheel, Gesture buttonCustomization appSupported by Logi Options+ on Windows and macOS2Available on Windows and macOS at logitech.com/optionsplusWireless operating distanceUp to 10 meters34 mm minimum glass thickness. Wireless range may vary depending on operating environment and computer setup.Wireless technologyLogi Bolt USB ReceiverBluetooth Low Energy (BLE): 5.0+SustainabilityPlastics: 26% post-consumer recycled material for MX Keys for Business; 27% post-consumer recycled material for MX Master 3S for Business4Excludes plastic in printed wiring assembly (PWA), receiver, wire, FFC cable, and packaging.Aluminum case (MX Keys for Business): Low carbon aluminumPaper Packaging: FSC-certifiedWarranty Information2-Year Limited Hardware Warranty