Keychron
Keychron B2 Pro Ultra-Slim Wireless Keyboard
Best ultra-slim keyboard for mobile professionals and frequent travelers.
Experience ultimate portability and efficiency with the Keychron B3 Pro, an ultra-slim wireless keyboard featuring a versatile 75% layout. It offers triple connectivity options: high-performance 2.4 GHz wireless, Bluetooth 5.2, and wired. Designed for cross-platform compatibility, it works seamlessly with Windows, macOS, Linux, and mobile devices. Personalize your workflow with the Keychron Launcher web app for key remapping and macros, ensuring a tailored experience for any setting, whether at home, in the office, or on the go.
$29.99
Owner Satisfaction
4.6
/ 5
Category Rank
459
/ 3730
#459 in Keyboards
Price vs Category Average
-79%
Below average
Layout
75
/ % ultra-slim wireless keyboard
Who it's for
- Typists wanting tactile feedback in a sleek, low-profile form
- Mobile professionals needing a lightweight, space-saving travel companion
- Multitaskers managing workflows across laptops, tablets, and phones
Who should skip it
- Budget-conscious shoppers looking for basic, affordable portable keyboards
- Keyboard enthusiasts who demand hot-swappable switches and deep customization
- Heavy typists who prefer the deep travel of full-height switches
Performance breakdown
Portability
Ultra-slim 9.2mm profile slides effortlessly into any laptop bag.
Connectivity Versatility
Seamlessly toggles between three wireless and wired modes across multiple platforms.
Typing Experience
Scissor switches provide a crisp, shallow feel ideal for rapid typing.
Customization Depth
Web-based launcher makes remapping keys and macros intuitive and accessible.
Battery Endurance
Three hundred hours of runtime keeps you productive without frequent charging.
Build Ergonomics
Concave keycaps and low-profile design reduce wrist strain during long sessions.
Key Specs
Layout
75% ultra-slim wireless keyboard
Connectivity
2.4 GHz wireless (1000 Hz polling rate), Bluetooth 5.2, Wired
Battery
800mAh rechargeable battery
Battery Life
300 hours
Thickness
9.2mm
Ergonomic
Yes
Key mechanism
Scissor
Compatibility
Windows, macOS, Linux
Features
- Ultra-slim and lightweight for easy portability
- Triple connection modes for versatile use
- Customizable keys and macros via web app
- Concave keycaps for comfortable typing
- Mac layout support with Windows compatibility
- Quick emoji access shortcut
- Protective and reusable silicone key skin
- Extended battery life for long-lasting use
What customers say
Customers consistently praise the B2 Pro for its exceptional ultra slim design and premium build quality. Users appreciate how easily it connects across multiple operating systems, making it a highly versatile tool for hybrid work setups. The low profile keys offer a comfortable and responsive typing experience, though some wish for slightly more tactile feedback. Overall, the keyboard is seen as a high value, aesthetically pleasing upgrade that delivers reliable performance without the bulk, successfully blending portability with desktop grade functionality.
Know before you buy
The B2 Pro uses a scissor-switch mechanism, which provides a shorter, snappier keystroke similar to a high-end laptop keyboard. The concave keycaps are specifically designed to cradle your fingertips, making it more comfortable for long typing sessions than flat, traditional laptop keys.
Yes, the keyboard is fully compatible with both macOS and Windows. It includes dedicated layout support for Mac, and you can easily switch between operating systems to ensure your modifier keys function as expected.
The 2.4 GHz wireless connection offers a 1000 Hz polling rate, making it the best choice for gaming or tasks requiring zero latency. Bluetooth 5.2 is ideal for multi-device pairing and portability, while the wired mode ensures a stable connection while simultaneously charging the battery.
The Keychron Launcher allows you to remap keys and create custom macros directly through your browser without needing to install heavy software. This makes it easy to tailor your workflow or shortcuts to your specific needs on any computer you connect to.
The 75% layout is a popular middle ground that retains the essential function row and arrow keys while removing the bulky number pad. It saves significant desk space and improves ergonomics by keeping your mouse closer to your body, which is generally more comfortable for extended use.
The keyboard features an 800mAh battery rated for up to 300 hours of use. Depending on your usage intensity and whether you use the 2.4 GHz or Bluetooth connection, most users will only need to charge it a few times a year.
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$30