Kensington KP400 Bluetooth and USB Switchable Keyboard for Windows, Surface, MacOS, Iphone and Android (K72322US),Black

Not worth getting it. I did so only because I thought (i) a complete change to bluetooth was necessary and had obtained the new Microsoft Precision Mouse, a bluetooth device, that I wanted to use (my old Logitech mouse having had a stroke and refusing to scroll -- with no solution offered by Logitech, despite hours of trying to find one); (ii) my old computer needed a bluetooth dongle since the computer lacked bluetooth; and (iii) my old Logitech K800 and its unifying receiver would not permit me to pair the new mouse with the new bluetooth dongle.I must add here that far too little attention is given to such issues by other commenters here for amateurs like me about conflicts between such strange things as bluetooth dongles and Logitech products that rely on its unifying receiver dongle. In my case it was a big problem if I wanted to use my new mouse: had to get rid of the old keyboard, I thought, and get this awful new bluetooth keyboard from Kensington (all wireless, of course) to get everything on the same wavelength, as it were.Well! More surprises were in store. The supplied batteries for the new KP400 ran out pretty quickly. Then another shocker: the new KP 400 from Kensington uses triple A batteries while the K800 uses double As. So you have have both on hand. Further, the new mouse recharges only by means of a USB connector plugged into your computer with no way of knowing (even using the Microsoft Keyboard and Mouse Center, which you must download and install) when the mouse recharge is done. You are told it is recharging by the Center, but not when it's over. A wireless mouse, a very good one, by the way, that makes my use a new wire just to keep it breathing, as it were. Great!Last surprises -- one pleasing, the other not. After getting the new keyboard, the KP400 which I now detest, paired and getting the new mouse paired and using them for a couple of weeks, I found I needed to put new batteries in the stupid keyboard. (Who knows how old and near death the supplied batteries were (thanks again, China)? When this happens, the whole pairing thing between the KP400 with the computer is lost. Try running your computer with no keyboard. (!!) Pull out the old K800 and plug back in the Logitech unifying receiver dongle, hoping for a miracle. Got one! It all worked! The computer recognized the old keyboard, let me pair it again, and I am using it now. The new keyboard, since I now could navigate with the old one, also was paired again and it worked at the same time. Amazing grace! The good part is that I can now go back to using my old, way better Logitech keyboard through the unifying receiver at the same time use the new bluetooth dependant Microsoft mouse works with the bluetooth dongle.The Kensington KP400 has been retired. Who knows when I might need it again? My hope is never.

I'm using this keyboard with a Windows 7 laptop plugged in via USB and a Nexus 7 tablet via bluetooth. Full-sized switchable keyboards like this are pretty rare, most switchable options are oriented towards travel and most bluetooth keyboards don't have a switching feature. The switching feature on this works great, especially when switching to USB where Windows will immediately recognize the keyboard and allow input. In Windows this keyboard has most of the keys needed for a decent experience. I'm a programmer and type for a living, I also prefer to use the keyboard rather than a mouse when I can, so I'm using this a lot and it seems to work great. My biggest complaint is that the key combination to switch the output is Ctrl+1, which is also the shortcut for Chrome to jump to the first tab. I miss the media keys, too.Switching to Android doesn't work quite as well. First, it takes a second or two for the keyboard to register and be usable. Then there's the key mapping. For one thing, the Windows key pulls up Google Now and I can't find a way to remap that key. All of the function keys are useless by default and it doesn't have any Android-specific keys. I used a keyboard helper app to remap some of the keys, but that was a good bit of work and the experience still isn't as good as, for instance, the Omoton Ultra-Slim Bluetooth Keyboard for Android. (The Omoton doesn't have the keyboard switching, though.) And again there's no media keys, which feels even worse on a media-centric device like a small tablet.Pros:Full-sized keyboardSwitchable between USB and Bluetooth.Good layout for Windows.Small footprint for a full keyboard.Cons:Key combination to switch from USB to Bluetooth is a common shortcut in Windows.No media keys.Only basic keyboard functionality by default in Android.Switching to Bluetooth is a bit slow.Final tally: It's good for one device and okay for the other, but it's also a rare combination of features so I give it 4 stars.

Overall keyboard feel is great, nice travel on the keys. I don't like wires all over my desk so I use it primarily via Bluetooth. I notice when I power down my desktop, the keyboard stays on, at least it keeps blinking. I wish it would just go to sleep and save battery. Since it doesn't, I have to flip the keyboard over to switch it to OFF. Now, why would any designer of commercial products make such an asinine decision to put the power switch UNDER the keyboard?! They should have put the darn thing at the top of the keyboard! There is lots of room on the top! The slide switch itself is also very tiny and it's recessed as well so you basically have to use the very edge of your fingernail to slide that darn thing.One other gripe, there are specially marked keys for the Blutooth/USB toggle and it's in a very dark blue color lettering so it's hard to see the contrast against the black keys. Should have been red or yellow. Again, product designers should take into account the small details that separates OK design and functionality from a greatly designed product, which translates into loyal customers.I also wish the keyboard allowed for more options for slant angle height. It's just so much easier on the wrists for me. There are pop-up legs on the top back but they really only ad about 1/4" height. I had to create my own keyboard rig to put under the board that lifts the top edge of the keyboard by a full inch.Now for the PROs: Very thin thickness overall. Well-spaced out keys, including Space bar. Separate Arrow key section and separate Numeric keys are great for someone who uses Excel a lot. Very small and not too bright status lights, less annoying. I like the matte finish on the entire keyboard, less glare and makes the characters on the keys easier to see and read.

Awesome piece of tech. Working with it every day and no cons.Just a heads up: work flawlessly between two devices, one through bluetooth, other with usb cable. To work with 2 or more bluetooth devices needs to be paired every time. But, besides that it's an excellent mechanical keyboard for a low budget and no fancy RGBs.

EDIT: I had to change my opinion. I usually used the keyboard wired, but since I tried to use it via bluetooth, it keeps disconnecting, sometimes it maintains a very poor connection, which leads to getting stuck on keys (repeating letters like "amazoooooooooo"). I wouldn't recommend this keyboard.The keyboard works great. I have only 2 small issues - I wish if the batteries were getting charged while being connected to the USB. I would like to be able to set the keyboard little bit higher. The two small legs at the back hardly make any difference. Other then that, perfect and the best mobile keyboard I've had so far.

Good: Physically fantastic.Bad: Bluetooth connection drops frequently, and does not reconnect. Same issue on 2 windows pc's - Obviously needs better connection management than relying on windows built-in drivers. The battery hatch is not fully open (you have to slide one of the batteries in) and most of the batteries get stuck meaning I have to pound the side of the keyboard on a hard-ish surface to get them out). This keyboard also uses a ton of battery life despite needing to reconnect every time you pause for more than 10-ish minutes.Infuriating because it is a very nice keyboard.

No receiver unit is included so it cannot be used wirelessly to a desktop pc unless you have bluetooth capabilities. The keys are extremely shallow. Feels a bit smaller than full size. Light and thin. cant raise it that high. keys arent illuminated.

good luck replacin the atteries= they are such a tight git that you need pliers to remove the second one