
ProtoArc Backlit Foldable Keyboard, XK01 Plus Folding Portable Bluetooth Keyboard for Travel, True Full Size External Wireless Keyboards with Backlight for iPad Tablet Smartphone Laptop - Black
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AI Verdict
This is a tri-fold, 105-key Bluetooth keyboard with adjustable white backlighting, built for extreme portability with tablets and phones.
This keyboard is a situational fit for those who absolutely need a tri-fold, full-size layout with a numpad for extreme portability. Its 8.46 x 4.68 x 0.78 inch folded size and multi-device Bluetooth 5.1 connectivity are its main draws, but the compromises in typing feel and connection stability mean it's not for everyone. It's a trade-off: maximum portability for a less-than-ideal typing experience.
If typing feel and connection reliability are more critical than extreme portability, look for a non-folding Bluetooth keyboard with scissor switches or mechanical switches for better key travel and consistency.
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Pros
- Folds down to 8.46 x 4.68 x 0.78 inches, making it easy to carry in a bag.
- Features a 105-key standard QWERTY layout with a number keypad and shortcut keys.
- Connects to three Bluetooth 5.1 devices, allowing quick switching between a phone, tablet, or laptop.
- Offers three levels of adjustable white backlighting for typing in dim conditions.
- Includes a phone stand and a small PU leather bag for travel convenience.
- Powers on when unfolded and off when folded, with a standby time of up to 150 days.
Cons
- Typing feel is described as 'rattly' and not ideal for extended use.
- Some keys may not register if not pressed directly in the center.
- Bluetooth connection can be unreliable, leading to skipped keystrokes and perceived lag.
- The screenshot button is positioned where it's annoyingly easy to press accidentally.
- The included phone stand does not sit flat when packed away with the keyboard.
Dimension Scores
Users describe the typing experience as 'rattly' and not 'super great' for extended use, with some keys failing to register if not hit centrally.
Some users report an 'unreliable Bluetooth connection' and 'keystroke lag' when connected via Bluetooth.
It offers three levels of adjustable white backlighting, which is functional for dim environments, but it's a single color and not customizable.
While ProtoArc claims 'durable hinges' for over 100,000 folds, some users have noted potential hinge misalignment issues out of the box, and the overall feel is described as 'rattly'.
Best For
- Quick note-taking on a smartphone or tablet while traveling.
- Occasional typing with a Steam Deck in desktop mode.
- Users who prioritize a full number pad in a highly portable form factor.
- Short bursts of typing in coffee shops or during commutes.
Not Recommended For
- Anyone needing a primary keyboard for daily, extended typing sessions.
- Users who require precise and consistent key registration for professional work.
- Gamers who need responsive and tactile key feedback.
Watch Out For
- Hinges can be misaligned out of the box, potentially causing plastic cover breakage if forced open.
- The screenshot button is easily triggered, which can be disruptive, especially on iOS devices.
- Keystrokes may be skipped due to an unreliable Bluetooth connection or if keys are not hit precisely in the center.
- The included phone stand is not designed to pack flat with the keyboard, making storage less streamlined.
- Battery life under actual use isn't clearly specified, despite a 150-day standby claim.
Full Specifications
| ASIN | B0DKNS3FK3 |
| Brand | ProtoArc |
| Color | Black |
| Material | Acrylonitrile Butadiene Styrene |
| Batteries | 1 Nonstandard Battery batteries required. (included) |
| Item Weight | 1.36 pounds |
| Manufacturer | ProtoArc |
| Special Feature | Foldable, Portable |
| Item model number | XK01 Plus |
| Compatible Devices | Laptop, PC, Tablet |
| Product Dimensions | 8.46 x 4.68 x 0.78 inches |
| Included Components | Full Size Backlit Foldable Keyboard, PU Carry Pouch, Phone Stand, USB Cable, User Manual |
| Keyboard Description | Multi Functional |
| Connectivity Technology | Bluetooth |
| Recommended Uses For Product | Business, Travel |
| Keyboard backlighting color support | Single Color |
What Buyers Say
This keyboard is a mixed bag, really. People love how tiny it gets when folded, especially with the full numpad, which is rare for travel keyboards. But that folding design comes with compromises; the typing experience isn't winning any awards, with complaints about keys feeling mushy or not registering if you don't hit them just right. The Bluetooth connection can be a bit flaky, causing missed keystrokes, which is super annoying if you're trying to get work done. It's definitely for specific situations, like quick emails on the go, not for writing your next novel.
“Look, it folds up small and has a numpad, which is cool for travel, but typing on this thing for more than five minutes makes me want to throw it across the room, keys feel mushy and sometimes they just don't register, so frustrating!”
Common Praise
- The tri-fold design makes it incredibly compact and easy to fit into small bags.
- Having a full 105-key layout with a number pad in a portable keyboard is a significant plus for many.
- The ability to pair with and quickly switch between three Bluetooth devices is convenient.
- The adjustable white backlighting is useful for typing in low-light conditions.
- The inclusion of a phone stand and carrying bag adds to its travel utility.
Common Complaints
- The keys are described as 'rattly' and don't provide a satisfying typing experience for extended periods.
- Some users experience skipped keystrokes or lag due to an unreliable Bluetooth connection.
- Keys may not register if pressed off-center, requiring more deliberate typing.
- The screenshot button is placed where it's easily pressed by accident, interrupting workflow.
- Initial hinge alignment can be an issue, potentially leading to damage if not inspected.
Ownership Tips
- You'll want to inspect the hinges carefully before the first unfold to avoid potential plastic cover damage.
- Be prepared for the screenshot button to be accidentally pressed often, especially if you use it with an iPad.
- The included phone stand is handy but doesn't fold flat with the keyboard for storage, which is a minor inconvenience.
- While it has a 150-day standby, actual battery life under consistent use isn't clearly defined, so keep a USB-C cable handy.
- Don't expect a premium typing experience; it's a compromise for the extreme portability.
Frequently Asked Questions
How do I adjust the backlight brightness?
You can adjust the white backlight through three brightness levels or turn it off by pressing the Fn key combined with the Backlight key.
Is this keyboard compatible with my devices?
Yes, it's compatible with a wide range of operating systems including Android, Windows, iPad OS, Mac OS, and iOS, and connects via Bluetooth 5.1 to up to three devices.
How do I switch between connected devices?
The keyboard supports 3 Bluetooth 5.1 channels, allowing you to switch between paired devices, though the exact key combination for switching isn't detailed in the product description.
What is the battery life like?
The keyboard has a built-in rechargeable battery with a standby time of up to 150 days, entering sleep mode after 15 minutes of inactivity to conserve power. Some users report it hasn't died on them with intermittent use.
Does it come with a carrying case or stand?
Yes, it includes a phone stand and a small PU leather bag specifically designed for the keyboard, making it easier to transport.
Buying Guide
When you're looking at a foldable keyboard like this, you're making a big trade-off: extreme portability for typing feel. Don't expect the same tactile feedback or key travel you'd get from a full-sized, non-folding keyboard. Think about how often you'll be typing and for how long. If it's just quick messages or emails on the go, the compromises might be worth it for the tiny footprint. If you're planning on writing a lot, you'll likely get frustrated.
Tri-fold Full Size Keyboard
This means the keyboard folds into three sections, making it super compact (8.46 x 4.68 x 0.78 inches) for travel. 'Full Size' here refers to having all 105 keys, including a numpad, which is rare for such a small device, but the key spacing and feel might not be truly 'full-size' like a desktop keyboard.
Multi Device Connection (3 Bluetooth 5.1 channels)
This lets you pair the keyboard with up to three different devices (like your phone, tablet, and laptop) and switch between them quickly. It's like having one keyboard for all your portable gadgets without constantly re-pairing.
Backlighting (Single Color, 3-level adjustable)
The white backlight helps you see the keys in dim lighting, which is useful if you're typing on a plane or in a dimly lit cafe. The three brightness levels give you some control over how much light it emits.
Alternatives
If typing comfort and consistent key registration are more important than the absolute smallest folded size, look for non-folding Bluetooth keyboards with better key travel or even compact mechanical keyboards. If you need a trackpad, search for foldable keyboards that integrate one.



