This unusual keyboard for iOS is made of spill-proof fabric and is thinner than the iPad Air 2.

Logitech has been building iPad keyboards for years – they were among the first to recognize the value of doing so, in fact. But for all their experience, and various iterations of the concept of the keyboard case, the company may have got it most right with a remarkably simple design introduced...

Logitech has been building iPad keyboards for years – they were among the first to recognize the value of doing so, in fact. But for all their experience, and various iterations of the concept of the keyboard case, the company may have got it most right with a remarkably simple design introduced...

As I mentioned in the first Work Beyond Mac column , my go-to iPad keyboard for the last few years has been Logitech's Ultrathin Keyboard Cover . It's lightweight, portable, has a battery that lasts forever, doubles as a screen cover when traveling, and has an adjustable viewing angle.

For users of either size iPad or even an iPhone 6 Plus, the Keys-To-Go is a solid choice. Not only does it ditch the requirement to replace (or remove) the case on your device, it's lightweight, super portable, quiet, and offers a familiar typing experience.

You can use any case; Great battery life

Slides around on smooth work surfaces

The Logitech Keys to Go is an excellent way to add productivity to your iPhone or iPad without strapping a keyboard case to your device. As an added bonus, this is a mechanical keyboard for the iPad, iPhone and other devices including the Apple TV.

Logitech's Keys-to-Go is for those who'd rather not add the weight of an iPad keyboard case, but still want the option of a keyboard. And while it's designed for iOS devices, it works with any device with Bluetooth. Unfortunately,  the FabricSkin material can make for an inaccurate typing experience. And at $69.99, it's also a little pricier than we'd like for a standalone Bluetooth keyboard. You can find excellent keyboard covers for less than half the price that include a stand and a superior keyboard, like the $29.99 Anker TC930 Ultra-Thin Keyboard Cover for iPad Air. Design and FeaturesThe Logitech Keys-to-Go keyboard is thin and compact at 5.39 by 9.53 by 0.24 inches (HWD), and its light 6.35-ounce weight makes for a very portable Bluetooth keyboard. The keyboard's surface is covered by Logitech's FabricSkin, which has a pleasingly smooth, felt texture. Under the FabricSkin is a mechanical keyboard that's protected from dirt and spills by the cover itself, which Logitech ...

Though lightweight and durable, the Logitech Keys-to-Go standalone Bluetooth keyboard's lacking tactile feedback can make for inaccurate typing.

Lightweight and compact; Familiar keyboard layout; FabricSkin material is spill/dirt proof and cleans easily

Relatively expensive; FabricSkin material reduces the tactile feel of the keyboard

To some people, a keyboard is just a keyboard. But they may be the same type who can pick any random mechanical pencil off of retail peg-hooks and feel completely satisfied. I don't know how to do that, since even mechanical pencils are tools in my eyes.

The best part about the Logitech Keys-to-Go is that it's completely device agnostic. Tablet keyboard folios may be a perfect match for something specific, but what happens when you decide to upgrade? What if you want to use the keyboard with a smartphone or PC?

Though lightweight and durable, the Logitech Keys-to-Go standalone Bluetooth keyboard's lacking tactile feedback can make for inaccurate typing.

Lightweight and compact; Familiar keyboard layout; FabricSkin material is spill/dirt proof and cleans easily

Relatively expensive; FabricSkin material reduces the tactile feel of the keyboard