Sungwoo Foldable Silicone USB Wired Standard Waterproof Rollup Keyboard for PC Notebook Laptop, Full Size (Black)

yeah. I am typing this review up on the keyboard I am reviewing. :D I have owned it since January of 2018. It is a great keyboard. I used it as a spare for a while. At first I thought the material feels weird to type on. I got over that recently. I found, though. that I like using it as my main pc keyboard as of a couple days ago. it seems to be working really well. as other reviewers said, the response time on this keyboard is great. I love the fact it is so flat and stays where I place it and it doesn't take u-p near as much space on my desk as a standard keyboard does. portability is great and all, but usability is important too. Another pro to it: it is spill and dust proof. Always great pluses.

I travel with my laptop and about 4 days before a trip the keyboard began to misbehave. At times I was not able to login making the laptop useless. Smile.Amazon.com to the rescue! I received this in time for my trip and it works perfectly with my laptop. As other reviews have noted, the keys do require a more definite stroke, but to me this is an advantage - I now have fewer 'lazy-finger' errors. The keyboard must be placed on a hard, flat surface to work and when changing working environments such as cold (car storage) to warm (workdesk), the keyboard needs time to adjust. The temperature differential between inside and outside the silicon keyboard caused the keyboard to appear slightly inflated. The unit worked fine but felt funny to the touch until the temperatures normalized. This took no effort or action on my part. Just a little bit of time. My built-in keyboard is currently behaving, but I will keep this in my bag for a backup. Highly recommended.

Pros: Quietest keyboard I ever tried. Maintenance is a breeze. Relatively cheap. Easy to carry around. All keys function correctly. Cons: Requires a hard flat working surface area making it not work well while lying in bed or sitting in a car unless you bring a long flat object to serve as a base, at which point might as well just carry a real keyboard. Occasionally a keystroke is ignored / lost when speed typing. Overall rating: 4 out of 5 I actually bought this more for the whisper quiet typing so it serves my needs wonderfully there and almost received a 5 star rating as a result. However the fact that occasionally keystrokes get lost drops it down from 5 stars level. PS: As an FYI during the course of typing this review I had to go back and redo 5 "lost" keystroke letters out of 1012 strokes total. Acceptable if you're typing unimportant text, but not if you are typing up important documents or published text. This is because there is no warning when you lose a stroke, which makes speed typing hazardous.

I'll be honest - I did not have high expectations for the performance of this keyboard. I prepared myself for disappointment with questions like "how good could this dinky piece of rubber be?" But I was supremely tired of lugging around a full sized keyboard and the self-imposed embarrassment of having it poke out of my backpack when I was moving from place to place, so this keyboard got a shot. Now, obviously this will not have the same feel as a normal full-sized keyboard, so let's get that out of the way. This is the solution to a niche problem, and keyboard feel and sound will be sacrificed. That said, it it not nearly the amount of sacrifice I expected it to be. Keyboard feel: It takes some getting used to, but I would say this keyboard takes about 5-10% more strength to push the keys down vs. a normal keyboard, but I think that's because when you're not entirely precise, you're pushing against the harder outside silicone of each key (diagonally in to get down). If I'm very precise and push down in the center of each key, then it's very easy to type, and short of the feel of the silicone, the effort feels like laptop chicklet keys. Keyboard sound: obviously the silicone is going to mute al your typing - you still get tapping noises from your fingers hitting the keys, but there is no mechanical noise of the key switch being activated. If I type slowly, it's entirely silent. Keyboard layout: Layout is incredibly important to me. As a power excel user, I need my function keys (F2,F4) to be dedicated vs. shared with things like volume and contrast. I also need the full number pad, which this has. Last, the Home/End/PgUp/PgDn buttons are also dedicated and in a good location. We'll see how durable it is - for now, I'm just folding it in half and dropping it into my backpack, but I imagine at some point things will start to wear out between the silicone and the sensors in the keys. Also, just to be comprehensive as I can, this keyboard isn't 100% fully flexible in every configuration - there is a section where the logo is (where the cable comes in) that has the controller and whatever other hard things that need to be in there, so that part does not flex. That means you do need to exercise some minor caution in rolling it up and transporting it.

I bought this because one letter isn’t working on my laptop keyboard. This keyboard serves it’s purpose…it types and get the job done, but I’m only giving it three stars for a few reasons. 1) It’s silicone and black and everything sticks to it so it’s impossible to keep clean. By day one it had dust, small hairs, basically anything it came into to contact with sticking to it (see pics) which kind of drives me crazy because it’s never clean. 2) The keys are soft and spongey (is that a word?, haha) so the typing action is slow making me less productive. The space bar tends to do a double-space so I often have to go back and fix that. 3) Sometimes a keystroke won’t take so I have to repeat it…again slowing me down. Overall, I’m keeping it because it serves it’s purpose and is easy to fold up and put in my laptop bag—even in it’s original box which is nice and compact. So that’s a plus.

Im sorry to say this but this product sucks. I called Amazon about re sending me the product because i like how quiet it is. The problem that are going on with the first one is that it only lasted me 3 days. The numbers on the keyboard not the number pad 1 though 4 stopped working. I really didnt know why so i called Amazon to figure out if they can send me a replacement. The person that i was talking to was very nice and helpful. The Amazon lady did her troubleshoot and other this by calling the company that made this keyboard but nothing. So she replaced it and arrived and so second keyboard well everything works but not my space bar. This isnt a product that should be picked by (amazon choice) this keyboard is garbage "DO NOT BUY" no JOKE DO NOT BUY because you will have this problems with this product. FYI, I only bought this because my keyboard on my laptop is Mechanical so my typing gets annoying at work. As well when you buy this product it comes in small box.

I was looking for a quiet keyboard as well as a portable one that didn't take up much room. I work from home and I also work on the road. Most of my work is data entry as a medical coder. I usually use a large ergonomic keyboard since I was a transcriptionist for years. However, coding is more of just a number pad. I was so amazed at how well this keyboard worked. The keys are soft, quiet and responsive to just the slightest touch. The portability is the best, just roll it up and stuff in your bag. Takes up minimal space and is light as air. If you are on the fence about trying this type of keyboard, I say go for it. I believe you will be very happy you did.

At first, when you open this product it seems very cool since the material is soft and appears easy to pack for travel. However, it does not condense as much as you think. This is why I would give this product a C- for portability. However, as for value and "ease of use"... very poor. The keyboard does not respond to your keystrokes most of the time. I practically had to punch the spacebar to get it to respond. For someone who uses the Columbus method of typing (you know... point and hope you land on something...), then this keyboard may work for you, for a weekend travel trip, to just answer a few emails. But if you are a true typist or use keyboard shortcuts for spreadsheets, etc. this is not the product for you. I ended up throwing this item away.

Horrible product, breaks easily and expensive.

I like this keyboard although some time you need to hit hard to type in but good enough to work at travel. I bought duplicate by accident but they respond my cancellation quickly.

Fnキーが無かったり、表示とPC上の表記がズレていてやりづらいです。安かろ悪かろうです。

Bought this keyboard few months ago. The keyboard is now wavy and the numeric keypad doesn't work anymore. Really disappointed in this product. Plus, the wavy thing makes it really hard to use.

There are certain inherent drawbacks to these silicone keyboards that users should be aware of before purchasing. They have more depth than some people might like, and instead of folding them, one rolls them up. There are some performance issues that fall short of what we've come to expect from keyboards. For one, the front silicone layer with the key bubbles in it never seems to align perfectly with the inside flexible printed circuit. So, the feel of the keys is always somewhat off, and the maximum rate at which we can type is also slower than what we may be used to. It may also have a slow scan rate as a reason for some missed keystrokes. It needs to be laid down on a flat, hard surface for use. It can develop waves from having been rolled up for a long time, which makes the layers line up even more poorly. And, because its middle layer is a flexible printed circuit, it can even happen that this circuit just fails after several years, due to no apparent fault of the user. Yet, I obtained a fully functional flexible keyboard that behaves exactly as I expected.