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