--- product_id: 727678170 title: "ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black" brand: "protoarc" price: "¥32333" currency: JPY in_stock: true reviews_count: 5 category: "Proto Arc" url: https://www.desertcart.jp/products/727678170-protoarc-foldable-compact-keyboard-for-phone-and-tablet-xk04-pocket store_origin: JP region: Japan --- # 7.8 oz ultra-compact foldable design Connects 3 devices simultaneously 150+ days standby on single charge ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black **Brand:** protoarc **Price:** ¥32333 **Availability:** ✅ In Stock ## Summary > ⌨️ Work anywhere, anytime—your pocket-sized productivity partner! ## Quick Answers - **What is this?** ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black by protoarc - **How much does it cost?** ¥32333 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/727678170-protoarc-foldable-compact-keyboard-for-phone-and-tablet-xk04-pocket) ## Best For - protoarc enthusiasts ## Why This Product - Trusted protoarc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Endurance Champion:** 150+ days standby with quick 2-hour Type-C recharge—work uninterrupted anywhere. - • **Triple-Device Sync:** Seamlessly switch between phone, tablet, and laptop with multi-channel Bluetooth connectivity. - • **Pocket-Sized Powerhouse:** Foldable and featherlight at just 7.8 oz—your ultimate travel productivity hack. - • **Universal Compatibility:** Effortlessly pairs with iOS, Android, Windows, and Mac devices for versatile workflow freedom. - • **Premium PU Leather Cover:** Sleek, durable protection that elevates your style and safeguards your keyboard on the move. ## Overview The ProtoArc XK04 Foldable Compact Keyboard is a lightweight, foldable Bluetooth keyboard designed for professionals on the move. Weighing only 7.8 ounces, it features a durable PU leather cover, supports simultaneous connection to three devices, and offers up to 150 days of standby time with fast Type-C charging. Compatible across major operating systems, it transforms any location into a productive workspace. ## Description XK04 Foldable Bluetooth Keyboard offers unparalleled portability, versatility, and convenience for your digital endeavors. It is a must-have accessory for anyone seeking portable productivity on the go. Its compact design, bluetooth connectivity, multi-device syncing, and compatibility with multiple operating systems make it an indispensable tool for digital nomads, students, professionals, and travelers alike. Suggested for anyone looking to enhance their typing experience with maximum portability and convenience! Compact and Foldable Design: The keyboard's compact and foldable design makes it incredibly portable, allowing to easily carry it in your pocket, bag, or backpack wherever you go. Its slim and lightweight construction make it the perfect travel companion for on-the-go productivity. Sync Up to 3 Devices: Connect the keyboard with up to three devices simultaneously, allowing you to effortlessly switch between your smartphone, tablet, and laptop with the touch of a button. It's a game-changer for multitasking and staying productive across multiple devices. Compatibility with Multiple Operating Systems: Whether you are using iOS, Android, Windows, or Mac devices, the folded keyboard offers universal compatibility, ensuring seamless integration with your preferred operating systems. Its versatility makes it suitable for a wide range of devices and applications. Review: Well built and super practical - Really nice piece of gadget that fits in my small folio bag and is an excellent travel companion. Review: I love this keyboard - Good keyboard. Very portable. ## Features - Palm-sized Folding Design with PU Leather Cover: Only 7.8 ounces – folds to a small size for carrying. The soft PU leather exterior protects against scratches and adds a premium feel. Slips easily into any pocket, bag, or briefcase. Perfect for business travelers, students, and digital nomads who need a keyboard wherever they go - Compact Layout: Unfolded size: 10.76"×4.07", keycaps 0.55". This mini keyboard saves desk space and fits on tight airplane trays or crowded cafe tables. Note: Due to the compact design (including the spacebar near the folding hinge), it may take 2-3 days to adapt your typing habit. Best suited for phone/tablet users writing emails, messages, and short notes. Check the dimensions before purchase - Bluetooth 5.1 with Stable 33ft Range: Connect to up to 3 devices (iPad, iPhone, Android tablet,etc) simultaneously. Switch between them with dedicated keys – no re-pairing, no cable juggling. Great for replying to Slack on your phone, then typing meeting notes on your tablet without missing a beat(Tip: Turn on power before pairing) - 2-hour Charge, 150+ Days Standby: Fully recharges via included Type-C cable (charging indicator turns green when done). Auto-sleep feature maximizes battery life of months of standby. No hunting for outlets during long trips. Perfect for remote work, travel, and daily carry - Your Reliable Partner for Mobile Creation: Draft a proposal in a café, journal in a park, or fine-tune a spreadsheet on a train. This pocket wireless keyboard turns any location into a productive workspace ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D9PT9884 | | Antenna Location | Business, Travel | | Box Contents | Foldable Wireless Keyboard, Phone Stand, USB Cable, User Manual | | Brand | ProtoArc | | Brand Name | ProtoArc | | Button Quantity | 104 | | Colour | Black | | Compatible Devices | Laptop, PC, Smartphone, Tablet | | Connectivity Technology | Bluetooth | | Customer Reviews | 4.4 out of 5 stars 754 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene PU Leather | | Hand Orientation | Ambidextrous | | Item Dimensions L x W x H | 27.3L x 27.3W x 1.4H Centimeters | | Item Weight Unit of Measure | 1 Kilograms | | Keyboard Description | Flexible | | Keyboard Layout | QWERTY | | Manufacturer | ProtoArc | | Manufacturer Part Number | XK04 | | Mechanical Keyboard Switch Model | Clicky | | Model Name | XK04 | | Model Number | XK04 | | Number of Keys | 65 | | Number of Sections | 1 | | Power Source | Battery Powered | | Product Features | Foldable, Lightweight, Portable, Rechargeable, Silent | | Recommended Uses For Product | Business, Travel | | Special Feature | Foldable, Lightweight, Portable, Rechargeable, Silent | | Style Name | Contemporary | | Switch Type | Clicky | | Unit Count | 1.0 Count | ## Product Details - **Brand:** ProtoArc - **Compatible Devices:** Laptop, Smartphone, Tablet - **Connectivity Technology:** Bluetooth - **Keyboard Description:** Flexible - **Recommended Uses For Product:** Business, Travel ## Images ![ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black - Image 1](https://m.media-amazon.com/images/I/71Vp29LkEAL.jpg) ![ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black - Image 2](https://m.media-amazon.com/images/I/71Njj99c-NL.jpg) ![ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black - Image 3](https://m.media-amazon.com/images/I/719CyFKPOkL.jpg) ![ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black - Image 4](https://m.media-amazon.com/images/I/71Ww3F2mvbL.jpg) ![ProtoArc Foldable Compact Keyboard for Phone and Tablet, XK04 Pocket-Sized Travel Bluetooth Keyboard with PU Leather Cover, 3 Device Workflow for On-the-Go Typing - Black - Image 5](https://m.media-amazon.com/images/I/712hocnrpQL.jpg) ## Questions & Answers **Q: Is the XK04 Too Small for Comfortable Typing?** A: XK04 is designed for ultimate portability with phones and tablets, featuring a compact layout. For extended typing or full-size keys, we recommend our XK01 model with standard 16.5mm keycaps and number pad. **Q: How to Connect and Switch Between Devices?** A: 1. Unfold and Turn on the power switch. 2. Choose Bluetooth Channel: Press Fn+Q/W/E 3. Enter Pairing Mode: Long press Fn + Q/W/E 4. Connect via your device's Bluetooth menu to "ProtoArc XK04" Simply short press Fn + Q, W, or E to switch devices. **Q: How Do I Know When My Keyboard Is Fully Charged?** A: A full charge typically takes about 2 hours. The charging indicator is often red while charging and will switch to a solid green light once the battery is completely full. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well built and super practical *by R***Y on 23 October 2025* Really nice piece of gadget that fits in my small folio bag and is an excellent travel companion. ### ⭐⭐⭐⭐⭐ I love this keyboard *by G***O on 6 November 2025* Good keyboard. Very portable. ### ⭐⭐⭐⭐⭐ Excellent, highly portable setup for mobile work *by D***. on 4 May 2026* The ProtoArc XK04 has been a great addition for getting work done when I’m away from my desk. It’s thin enough to toss in a bag for a coffee shop session before a meeting, and the setup is fast enough that it doesn't feel like a chore to pull out. I also use it at home to knock out a bit of work on my phone or tablet while watching TV in the evening. It isn't as rigid as a full-size desktop keyboard, but for the size, it’s surprisingly comfortable to type on and even works fine for gaming. The best feature is that it stores three Bluetooth profiles. Being able to toggle between a phone and tablet instantly without re-pairing is a huge time-saver. If you need a compact, reliable keyboard for travel or casual use, this one is hard to beat. ## Frequently Bought Together - ProtoArc Foldable Compact Keyboard, XK04 Portable Bluetooth Keyboard with PU Leather Cover, Pocket-Sized Wireless Travel Keyboards for iPad, iPhone, Smartphone, Tablet and Laptop - Black - Logitech M196 Bluetooth Wireless Mouse, Compact and Portable Mouse for Laptops, Tablets and More, 12-Month Battery, Smooth Tracking, Compatible with PC and Mac, Windows and macOS - Graphite --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/727678170-protoarc-foldable-compact-keyboard-for-phone-and-tablet-xk04-pocket](https://www.desertcart.jp/products/727678170-protoarc-foldable-compact-keyboard-for-phone-and-tablet-xk04-pocket) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-04*