Logitech K400 Plus Wireless Touch TV Keyboard with Easy Media Control and Built-in Touchpad, HTPC Keyboard for PC-Connected TV, Windows, Android, ChromeOS, Laptop, Tablet - Black

I have two 6 Series (MU6290) 40" Samsung 4K Smart TVs that I purchased at Costco, one in my office and the other in my master bedroom. For about $19 I purchased a wireless keyboard and mouse combo on Amazon to use with the TV in my office. They use a single unifying USB reciever and work great, just plug and play. The only thing I found I didn't like was having two devices to keep track of and having to switch between them to point and input data. I saw this keyboard as an Amazon Deal of the Day two days ago and just received it, in fact I'm writing this review with it while sitting on the bed and using my bedroom TV. It turns out to have been a very good purchase because it works great! I merely plugged the unifying USB receiver into the first USB input on the back of the TV, turned the keyboard on and started using it, true plug and play. And boy do I love using the touchpad to cursor around instead of having to switch between the keyboard and mouse like I do in my office. In fact, even though the keyboard and mouse work fine on the TV in the office, I may end up buying another K400+ to use in the office, it's "that nice" not having to use two devices. I know the K400+ is advertised as a device for using with a computer connected to a TV but I read other reviews where it was being used directly with a smart TV without a computer and, even though it works great with my Samsung, I can't speak to whether it works with all smart TVs, though I expect it should work with any of the later Samsung Smart TVs which use Samsung's Tizen OS. I don't know if it works with the other two major Smart TV operating systems, WebOS & Android. It's light, seems well made, has a QWERTY keboard with nice key response and feel and is spaced fine for touch typing. It's great for basic input and I'm finding out more about how it functions with my TV. For instance, I found out holding down the CTRL key while cursoring moves the cursor one word at a time, holding down the SHIFT key while cursoring highlights one letter at a time, holding down the SHIFT + CTRL keys while cursoring highlights one word at a time, etc. These are familiar, however I've discovered by playing around that other keys and key combinations do things but the result may not necessarily be what I expected, but I'm the type who likes to play and learn and will thus get even more use from this keyboard as I learn. For example, just discovered esc key is equivalent to the "back" function when used in your browser. I can mention the media keys, previous chapter, next chapter, pause/play, volume up & down don't work with my TV. I'm sure they do if the keyboard is connected to a computer that's connected to a TV, as advertised. However this keyboard is perfect for anyone who only simply wants to point and input, especially if you only want to use one device! Overall I'm "extremely pleased" with the K400+ and am so glad I decided to give it a try. Of course the only thing I can't comment on is it's longevity but I hope it lasts a good long time because I love this thing!

I already owned a small bluetooth keyboard I had bought for use with my Kindle tablets. I have a few 10in tablets that I sometimes use to connect remotely to my main desktop PC. The setup works incredibly well when you pair the tablets with a wireless keyboard and mouse.I bought this additional bluetooth keyboard because there are times I'd like a keyboard, but don't want to have to deal with a separate mouse. Plus there are other times where I need to access a headless PC, or my Raspberry PI, or where I'd love a wireless keyboard for playing Steam games, etc. So I was looking at this keyboard as being great for multi-use.The one thing I hadn't realized was that the small USB dongle (which is in the front flap of the box) is REQUIRED. Since the product description said this keyboard worked with Android, I just assumed it was like my other bluetooth keyboard and didn't need anything additional to plug in. As it turns out, yes, you DO need to use the usb dongle with a tablet or your phone -- and that kinda sucks because obviously those devices don't have a USB-A port.Luckily I had a USB-A to USB-C converter from something else I bought and I tried it out in the Kindle Fire HD10. The keyboard and touchpad worked immediately! Yay!I've ordered a right-angle USB-A to USB-C adapter, so that it's less likely to break if I bump it into something versus the straight USB-A to USB-C adapter that I have now. Then I'll be in-business, regardless if I want to use this keyboard with my tablet, a home theater PC, phone or whatever.The quality seems decent. I haven't had a chance to fully test it out just yet, but if I have any issues I'll update the review.The only other slight gripe is that there's a power switch, so it looks like it has to be powered on or off with the switch versus automatically powering off like my other compact bluetooth keyboard. I tend to forget to shut things off that I normally wouldn't have to (like a wireless mouse). I'd hope that the battery wouldn't drain when the keyboard is not in-use, or it would at least be minimal drain -- but time will tell! It's nice that it uses AA batteries so they're easily replaced.All in all, this keyboard looks like it'll work out well for being a multi-purpose keyboard. It lacks the convenience of a dongle-less keyboard, but having the touch pad built into it makes it VERY convenient when you don't want to have to operate a separate mouse. There have been many times I've worked with a headless PC in the last few years and it's annoying to try to navigate with just the keyboard, or have to setup a mouse on the floor. So this keyboard will solve that problem. And, I'm actually looking forward to trying it out with Steam games to see how it holds up with some games being played while on the couch.

This wireless keyboard was purchased to control a mini computer connected to our audio/visual center, which is a limited use case, so our expectations aren't demanding. It works well for our purpose. The keys are nicely spaced for the limited typing we do, and the touchpad pad supports all of the necessary options and is easy to use with selections via either a tap on the pad or a mouse-key click. It is an attractive package and compact, which fits nicely into a easy chair pocket. It connects without issue across the room, and, so far, has exactly met the needed expectation of our use case. The easy sliding on/off switch is a nice touch to maximize battery life.I could easily have selected 5-stars, but, our is definitely not a very demanding case with modest expectations.I would buy this Logitech K400 Keyboard again.

This review is for the Logitech K400 Wireless Touch TV Keyboard.----------------------------------------------------------------Update, July 20, 2023This wireless keyboard still functions like new, but there is one additional quirk discovered since the original review below. Quite often when using the volume controls on the keyboard to raise or lower volume, those two buttons will instead turn off sound entirely. It's a mild nuisance, and only requires pressing the adjacent volume on/off button. Still love this keyboard and use it nearly every day!----------------------------------------------------------------October 12, 2021Wireless keyboards have been around for many years with many brands now available. As far as function, they're all pretty much the same. I've used a few of them over the years and have been happy with this particular device so far.This Logitech K400 Wireless Touch TV Keyboard performs just as you'd expect, with a full-sized standard keyboard layout and a built-in touchpad on the far right. It's perfect for controlling my old laptop that is now connected to my TV. The farthest away I've used it is about 15 feet from the laptop and it has worked flawlessly at that distance. The keys have a nice feel when depressed, providing adequate soft feedback when fully depressed, without clicking. The touchpad is adequate but does have some quirks as described below.The transmitter operates in the 2.4 GHz band, so theoretically could interfere with your wireless network and other wireless devices, although I've used this keyboard extensively and haven't noticed any issues.The Function keys are claimed to be customizable to create shortcuts. I don't have a use for that capability, so haven't tried it and can't comment on how it's implemented. I've only used this wireless keyboard on Windows 10 computers, but the specs say it works on 'Windows 7, 8, 10 or later, Android 5.0 or later, Chrome OS'.The Volume buttons immediately above the touchpad come in very handy. Be aware though, they control system volume and not the volume of individual applications. To control the volume of a single application, use the on-screen controls for that application.The keyboard is a good weight to operate while holding in my hands and seems plenty sturdy for daily use, but not for unnecessary roughhousing - as you might expect. It operates on 2 AA batteries which last a long, long time, taking several months of daily use to deplete. (And that's without turning the power switch off.)USABILITY NOTES:=================SIGNAL STRENGTH -The signal seems to be very strong, but the keyboard must have a line-of-sight, unobstructed view of the receiver. For instance, when using the keyboard in my lap the signal doesn't reach the receiver if my legs are crossed or my knees elevated so the front of the keyboard can't quite 'see' the receiver. Similarly, I've found that if the keyboard front is facing 90 degrees away from the receiver, the signal is not received. Not big issues, but they may be important to some people.TOUCHPAD QUIRKS -1. As stated above, the touchpad does have some quirks. On two occasions the touchpad all of a sudden started to ONLY control screen magnification - increasing and decreasing as I dragged one finger across the surface. I've never determined the cause but in one instance, only removing the battery remedied the strange behavior.2. The touchpad seems to be particularly sensitive to moisture or oil from the skin on my fingers. Meaning, it sometimes simply stops working properly until I thoroughly wipe my fingers with a dry cloth. This is a common issue when using touchpads, but this one is more sensitive than any others I have used, or currently use.MYSTERIOUS YELLOW BUTTON -1. The yellow button at the upper left of the keyboard is poorly documented and I've seen many posts asking what the heck it does. After more research than expected I found it simply functions as a left mouse button, and I've found it most useful when holding the keyboard in my hands. That way, fingers on the right hand work the touchpad and the left thumb presses the yellow button to select things. After about 5 minutes of practice it seems natural.2. Some Windows OS menus and windows won't respond to the yellow button. There doesn't seem to be any predictable pattern as to which items will or will-not respond to the yellow button - but when that happens, the left button under the touchpad must be used.FOUR WAYS TO SCROLL A WINDOW -There are four ways to scroll a window; Pick the one that seems most natural to you.1. Press and hold the Function [FN] button while dragging a finger up/down on the touchpad.2. Position the arrow pointer over the scroll bar slider; Press the Yellow Button; Drag your finger up/down on the touchpad.3. Click the mouse pointer on an inactive part of the screen, then use the Up and Down buttons in the lower right part of the keyboard.3. As with most touchpads, drag two fingers horizontally or vertically.I use this keyboard daily and have been very happy with it. It has a few quirks, but nothing close to a deal breaker. If you need a wireless keyboard, give this one a try.Highly recommended!

Fully compatible with PS5, simply plug in the USB dongle and switch on the keyboard and hey presto it's good to go. Nice size, great value works as advertised.

The Logitech K400 Plus is a great addition to your multimedia TV setup when you set up a PC or Android TV. Rather than using the remote with Gyroscope to type out each letter to a show or movie that you are trying to find, This wireless keyboard makes it easier for you to type the words out at ease without fatiguing you arms when swinging them back and forth to each virtual QWERTY pad on screen. It also has a built-in track pad that is conveniently placed on the right side so you can not only use typing, but also cursor your way to specific buttons and search bar. It is packed with so many features that I find it useful in any way. I mainly use it for my Android Box, so the digital volume button and the back button has been used plenty of times for me and I didn't have to cursor my way down to the task bar to change the settings from there.The connectivity is pretty simple as you turn on the keyboard, plug in the USB dongle in the box, turn on your TV, and it should recognize immediately without any use of driver install. The size of this keyboard is around a 65% layout with an added track pad to the side. It is on the thinner side, so don't expect that the keyboard is made with quality as it does display creeking noises when pressed down. Speaking of pressed down, the key strokes are not mechanical and have a short travel. It feel very mushy when pressed, not the best keyboard per say, but it does get the job done. Battery life, is surprisingly very good as it lasted quite a long time for me, but your mileage may vary as I turn the keyboard off after every use to conserve battery. I like how the USB is conveniently place in the back cover inside where you access the battery compartment.Now, the reason, why I gave this keyboard a 3 star, is because of the way the keyboard felt. Although its features is a standout, it ruined it for me with the mushy keys. I'm also comparing this to the Logitech K600 that I also owned and that keyboard, although a tad more expensive, felt way better then the K400. Too bad, I don't understand why Logitech still kept this keyboard the K400 and discontinued the K600. There is no way you can find psychically in stores or in any online sellers. The K600 keys are mushy, however, a different kind of mushy. This mushy is muted and very composed, while the K400 felt so out of place. The built quality, although both made of some find of plastic, the heft from the K600 felt like it is quality. The design on the K600 also felt like it was well thought out compared to the K400.Overall, as a budget wireless keyboard that is practically compatible with almost all platforms without any drivers needed is a huge plus for me. Anyone who are looking for a keyboard and wonder if it is compatible with their system, I can safely recommend this keyboard as long as they are only using it for a short while and not long sessions. I find that using this keyboard on long sessions can feel fatiguing and wanting to have that extra key travel that "normal" keyboards do.

Excellent little keyboard. Linked up to my PC connected to my TV right away. When not in use, I keep it in the box it came in. Totally satisfied!

Edit: I have discovered the print screen key is actually tied to the backspace key and not F6. You must use FN+Backspace for normal use or FN+Win+Backspace to save a screenshot. I'm raising my rating one star after finding this important feature is present. You can also hold FN to scroll with one finger - namely, your thumb - on the trackpad.After a year of use I am finding the keyboard to be quite reliable. The plastic hasn't degraded much so it seems to have Logitech's signature high durability surface material as opposed to their competitors whose plastic surfaces tend to degrade and become sticky.I have found it easier to use without a backlight after getting used to the size and layout. Easy alignment is possible like all keyboards with the bumps on the F and J keys. After truly getting to know the keyboard I will raise my rating to five stars.----Original Review---The keyboard works fine when it comes to core functionality and it can connect to the same shared Logitech receiver if you already have one plugged in. It has a left click button on the top left corner so you can hold the entire thing in both hands like a controller, using your thumb for the trackpad without needing to move hands to left click. I would prefer both left and right click buttons in the corner instead of just the left click.There are a couple problems, first being that there is a dead zone on the outer edges of the track pad when dragging from outside to in and it's really annoying. The other problem is the screenshot button sharing the F6 key simply doesn't work. Neither the key on it's own nor the Win+Screenshot key combo work. Literally the only way to take screenshots with this keyboard is to use Snipping Tool or another program. One of the reasons I tend to not like using this all the time as my Rii keyboard does have a working screenshot button.I would also like a version of this keyboard with a backlight that's affordable. The versions with backlights are really expensive. And maybe one that has all of that but in a lightweight metal or glass so that it feels nicer and wears better over time.

Just had it delivered a few hours ago. Tried it with my mobile (had to get a small OTG adaptor to get started). I also own the K480, and got this one because it has a touchpad. Comparing the two, both have unique features that I would not call positive or negative, because how one views a feature, or the lack thereof, depends on one's requirements. The plus-point of the K480 is that it connects through bluetooth, leaving the port free to charge the mobile (if you want to use it with your mobile/tab) or connect a pendrive to it. The keys are larger and better spaced out (important if typing comfort is a major priority). The K400 plus, on the other hand, requires the OTG adaptor, plus, the unifying receiver used to connect the keyboard to devices like the mobile, tab, or the LCD TV. The plus point of this feature is that connection is immediate. The minus point is that one must be careful not to lose the 'unifying receiver'. Also, if you forget the OTG connector, there is no way you can connect the keyboard to anything. The 'K400 Plus' is also lighter and slightly tinier: But comfortable enough for normal to large sized fingers to type without any obstacles. Unlike the K480, this piece has the touch pad. One main advantage of going for these keyboards ( be it the K480 and K400) is the amount of money saved...in my case, I saved 28K approx., the amount I would have to invest for getting a new laptop. And just didn't have the money to invest in one. Now, with this, I can complete most college assigments. And a couple of years later when my phone conks off, I can simply get a new smartphone for about 8-10K. If one calculates the interest accumulated, one has way more in one's hand than one thinks.

Very useful keyboard for a media centre PC. Very handy having both the keyboard and trackpad in one unit rather than trying to find a surface to use a mouse on. Keyboard is good to type on. The unit as a whole feels solid but the plastic it is made out of seem quite cheap - which the product definitely was not! So the prices Logitech charge are a bit high but its the only media centre keyboard on the market so you just have to deal with it.

Very important detail. You would expect the dongle to be in the battery compartment, but it is actually on a flap on the box. Seller was very polite and helpful when I enquired about it. On an unrelated note, this keyboard works with the Logitech Options software, but Logitech Options, the program to configure the keyboard does not seem to work with Window 11. Just something to be aware of. The keyboard and trackpad will still work, only there won't be a way to reverse two finger scrolling direction. That is a Logitech issue.

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This review evaluates the “K400 Plus Wireless Touch TV Keyboard” made by LOGITECH.The product was shipped with no excessive or wasteful packaging and all components were contained snugly in the box. What’s in the box: one (1) Wireless Touch TV keyboard, one (1) Logi “Thunderbolt” wireless USB-A transmitter, two (2) AA alkaline batteries, and user instructions. This keyboard took almost a month to be shipped to me however; it was well worth the wait.First impressions: Solid, compact, and lightweight. This keyboard is well made and nicely laid out with an integrated mouse touchpad on your right-hand side. It has minimal flex and a nice rigid feel. The keyboard connects to your PC via a USB-A transmitter key. It is powered by two (2) AA alkaline batteries (provided) which can last for up to 18 months of use (based on 2 hours per day). There is an ON/OFF switch on the front of the keyboard to preserve battery life when not in use.Keyboards are a very “personal” piece of sensory input equipment; you will never please everyone with how the keys “feel” and perform in the hands of the operator. This keyboard has a nice soft yet responsive input and is comfortable to type on. The integrated mouse pad feels identical to that of a laptop. The keyboard has decent range, I tested it at multiple distances up to 15 feet with no loss of connection.Cost-effectiveness and value: Overall I am very impressed with the product, it is well made, compact, and does a good job. I was looking for a compact keyboard with an integrated mouse pad that utilized a small footprint on my shop workbench… This fits the bill to a tee. At a current price of $39.99, I feel it is fairly priced for the functionality and convenience delivered.In summary: the “K400 Plus Wireless Touch TV Keyboard” made by LOGITECH is well made, compact, and does the job it should. I would recommend this product without reservation.Pros 👍:✔ Well-made using quality materials.✔ Solid, compact, and lightweight.✔ Nice responsive soft-touch keys.✔ Integrated mouse pad.✔ Wireless connectivity via RF USB-A transmitter key.✔ Good connectivity distance – up to 33 feet.✔ Long battery life – up to 18 months based on 2 hours use per day.✔ Fairly priced and good value.Cons👎:✘ None!