logitech K780 Multi-Device Wireless Keyboard for Computer, Phone and Tablet (Renewed)

USB unifying receiver is located in the battery compartment, which must be slid towards the bottom of the keyboard to open)
Multi-device wireless keyboard: Beautiful type-on-everything keyboard with easy switching between three devices, including any computer, tablet and smartphone. Logitech FLOW cross-computer typing: Use as a regular keyboard or combine with a compatible Logitech FLOW mouse (sold separately) to type, copy, paste and move files seamlessly between computers.
Comfortable typing: Full size, fully equipped keyboard with large, quiet keys and convenient number pad
Integrated phone and tablet stand: Holds your devices at the perfect angle to type and read
Wide compatibility: Works with Windows, Mac, Chrome OS, iOS and Android devices. OS Adaptive: Automatically recognizes each device and maps keys to give you a familiar layout, including hotkeys and shortcuts. Two year battery life*: Virtually eliminates the need to change batteries (*Battery life calculation based on an estimated two million keystrokes/year in an office environment. User experience may vary.)