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Portable Keyboard Selection
Navigate the trade-offs between ultra-portability and sustained typing comfort to avoid productivity pitfalls.
ProtoArc XK04 Foldable Compact Keyboard with PU Leather Cover
For the mobile professional who needs to type on the go, this keyboard transforms brief moments into productive sessions. While most portable keyboards focus on basic functionality, this one delivers a reliable workspace that fits in your pocket, making it ideal for quick email replies during a commute or jotting notes between meetings.
The keys have a satisfying tactile response that belies their compact size, allowing you to type comfortably in a coffee shop without disturbing others. With triple Bluetooth connectivity, you can switch seamlessly between your phone, tablet, and laptop, ensuring your workflow stays uninterrupted. The PU leather cover provides protection and a premium feel, while the long battery life means you can rely on it for months without recharging. This keyboard turns any location into an efficient workspace, giving you the freedom to create wherever inspiration strikes.
Features
- Multi-device Bluetooth connectivity supporting up to 3 devices
- Compact travel size with 10.76*4.07 in unfolded dimensions
- Rechargeable battery with Type-C charging and 150+ days standby
- PU leather cover for protection and good texture
- Folding mini keyboard with palm-sized design for portability
General specs
- Brand: ProtoArc
- Model: XK04
- Seller: Amazon
- ID: B0D9PT9884
- Brand: ProtoArc
- Model: XK04
- Weight: 7.8 ounces, 0.49 lbs
- Folded size: Palm-sized
- Battery Type: Rechargeable
- Intended Use: Mobile creation, Business travel, On-the-go typing, Brief use
- Power Switch: Yes
- Standby Time: 150+ days
- Charging Port: Type-C
- Charging Time: 2 hours
- Keyboard Type: Foldable, Compact, Portable, Bluetooth, Wireless, Travel
- Cover material: PU Leather
- Operating Range: 33 feet, 10.06 meters
- Dimension Keycap: 0.55 inches, 1.40 cm
- Bluetooth Version: Triple channels
- Supported Devices: iPad, iPhone, Smartphone, Tablet, Laptop
- Auto Feature Sleep: Yes
- Compatibility Note: Smaller than some foldable models, May cause inconvenience to typing habits due to compact layout
- Devices Max Paired: 3
- Unfolded Dimensions: 10.76 inches × 4.07 inches, 27.33 cm × 10.34 cm
- First listed by seller: February 24, 2026
If you are interested in more details, you can find full information on the seller's page.
Amazon live offers
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Top live offer
€22.45
Free shipping
New
Third-party seller
FBA
Shippable
Offers updated: 9/5/26
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
Price History for seller Amazon
Shipping options
Delivery to 
United States
United States
Available
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ProtoArc XK04 Black
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| Brand | ProtoArc | Logitech | Logitech | MOJO-HOME | ||
| Model | XK04 | Pebble Keys 2 K380s | ALTO KEYS K98S Plus | L2 | ||
| Color |
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| Rating |
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| Price | €22.45 | €44.29 | €43.01 | €75.79 | €34.40 | €46.87 |
| Seller | Amazon | Amazon | Gshopper | Sunsky | Amazon | Banggood |
| Update | May 11, 2026 | May 8, 2026 | Jul 25, 2024 | Sep 5, 2026 | Apr 8, 2026 | May 9, 2026 |
| Keyboard Type | Foldable, Compact, Portable, Bluetooth, Wireless, Travel | Backlit | Virtual, Laser Projection, Portable, Full-Size | |||
| Keyboard Layout | Fn shortcut keys | QWERTY | 94 Keys | |||
ProtoArc XK04 Black
€22.45
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
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