Logitech K580 Unifying Slim Easy Switch Multi-Device Wireless Keyboard - 18 months Battery Life, Mac/iOS/Andriod/Windows, Bluetooth + USB - Graphite WORK SEAMLESSLY WITH EASY-SWITCH™ A computer keyboard that also works with your smartphone and your tablet. The Easy Switch buttons let you switch typing between two devices with the same keyboard. Start typing a report on your computer, then switch to type a message on your phone — which can be placed in the built-in phone cradle for better multitasking. Specs & Details USB Receiver Dimensions: 14.4 x 18.7 x 6.7mm Weight: 2g Keyboard Dimensions: 143.9 x 373.5 x 21.3mm Weight (with batteries): 558 g (including battery) Slot Dimensions: 11 x 175.7 x 10.3mm - with a hook that holds the phone at 6.2 mm from the bottom Technical Specifications Battery life Keyboard: 18 months Battery type: 2AAA (included) Wireless operating distance: 10 m 1Wireless range may vary due to environmental and computing condition Wireless technology: Logitech Unifying™ Receiver or Bluetooth low energy technology Unifying ready receiver: Yes Warranty Information: 1-Year Limited Hardware Warranty System Requirements Unifying™ Receiver Available USB port required Windows® 10,11 or later macOS 10.10 or later Bluetooth Bluetooth low energy technology is required Windows® 10,11 or later macOS X 10.10 or later iOS 5 or later iPadOS 13.4 or later Android 5.0 or later Works with Surface Contents: Keyboard 2 AAA batteries (pre-installed) Unifying USB receiver User documentation