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A turn of the Easy-Switch knob allows you to alternate between 3 connected Bluetooth devices. Logitech

You've got a computer, smartphone, and tablet, but do you have a keyboard that works with all of them at the same time?

That's the concept behind Logitech's $50 Bluetooth Multi-Device Keyboard K480, billed as "the first desk keyboard designed for use with up to three devices, regardless of computing platform."

Yes, the K480 is platform agnostic and can connect to three different Bluetooth wireless devices at once, whether they're Windows, Mac or Chrome OS computers, or Android, Windows, and iOS tablets or smartphones.

To switch between devices you simply turn the "Easy-Switch" dial to the desired device and start typing. We played around with it and it worked as advertised. It's similar to previous Easy-Switch Logitech keyboards, such as the K760 or K810 , but the new K480 includes an integrated slot that holds phones and tablets. The keyboard comes in white or black.

The K480 is due to ship this month in the US and Europe. Check back here for a review soon, at which time we hope to have more details on UK and Australian pricing -- $50 converts to around £30 or AU$54.

The keyboard also comes in white and has an integrated stand for smartphones and tablets. David Carnoy/CNET