AJAZZ B21 Mechanical Keyboard
Best compact mechanical keyboard for mobile professionals and multi-device users.
Experience enhanced productivity and style with this compact mechanical keyboard. Its 68-key layout saves space while offering full functionality, perfect for any desk. Seamlessly switch between devices with dual Bluetooth and USB connectivity. The customizable dual knobs provide intuitive control over volume, brightness, and other essential functions. Enjoy extended use thanks to the long-lasting 4000mAh battery, making it an ideal companion for both work and play.
$105.00
Owner Satisfaction
4.4
/ 5
Category Rank
2382
/ 3877
#2382 in Keyboards
Price vs Category Average
-24%
Below average
Keyboard Layout
6865
/ keys (Compact, Percent)
Who it's for
- Minimalists needing extra desk space without sacrificing essential keys
- Multitaskers juggling multiple devices across different platforms
- Keyboard enthusiasts who enjoy experimenting with different switch feels
Who should skip it
- Power users who rely on advanced macro and lighting customization
- Typists who prefer a premium, rattle-free sound out of box
- Competitive gamers requiring rock-solid wireless performance and long battery life
Performance breakdown
Connectivity Versatility
Seamlessly toggles between three devices via Bluetooth or reliable wired connection.
Portability Factor
Compact 65 percent layout fits easily into any mobile workstation setup.
Battery Endurance
Large capacity battery keeps you powered through long, productive work sessions.
Control Customization
Dual knobs provide intuitive, tactile adjustments for volume and lighting settings.
Typing Experience
Mechanical switches offer satisfying tactile feedback for precise, comfortable daily typing.
Ergonomic Design
Lacks integrated wrist support and ergonomic shaping for extended typing comfort.
Key Specs
Keyboard Layout
68 keys (Compact, 65 Percent)
Connectivity
Bluetooth Wireless and USB 2.0 Wired
Connection Interface
USB-C, Bluetooth
Switch Type
Mechanical (Cherry Axis Body)
Backlighting
LED (Single Color)
Battery Capacity
4000mAh Lithium
Battery Life
36 hours (continuous use with light mode)
Compatibility
PC / MAC
Know before you buy
Yes, the keyboard is fully compatible with both Windows and macOS. You can easily switch between devices using its Bluetooth connectivity.
The B21 supports Bluetooth pairing for up to three devices simultaneously. You can toggle between them to maintain a seamless workflow across your setup.
Blue switches provide a tactile, 'clicky' feel ideal for typing; Brown switches offer a tactile bump without the loud click; Red switches are linear and smooth, making them a popular choice for gaming and quiet environments.
The 4000mAh battery provides approximately 36 hours of continuous use with the LED backlighting turned on. Battery life will be significantly longer if you choose to dim or disable the lighting.
The two knobs are customizable, allowing you to map them to functions like volume adjustment, screen brightness, or other system shortcuts for quick, tactile control.
No, the AJAZZ B21 features a compact 65% layout with 68 keys. This design omits the dedicated numeric keypad to save desk space and improve portability.
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