The Keychron B1 Pro (B1P-K1-AR) is an ultra-slim 75% wireless keyboard with 77 low-profile keys, including 12 multimedia keys, in a space gray finish. It connects by 2.4GHz or wired USB-C at 1000Hz and by Bluetooth 5.2 to three devices, and its 800mAh battery lasts up to 8 months. At just 425 g and 5.2 mm thick at the front, it is ideal for work, study and travel.
Key Features
Ultra-slim profile: 5.2 mm front height and 3.2° typing angle
Compact 75% layout with 77 keys, including 12 multimedia keys
Tri-mode: 2.4GHz dongle, Bluetooth 5.2 (3 devices) and wired USB-C
1000Hz polling in 2.4GHz and wired modes
800mAh battery for up to 8 months (about 1200 hours) of use
Key remapping and macros with Keychron Launcher (ZMK)
Works with macOS, iOS, Windows, Android and Linux
Arabic/English legends and lightweight 425 g body
Full Specifications
General
Brand
Keychron
Model
B1 Pro
Part Number
B1P-K1-AR
Product Type
Ultra-slim wireless keyboard
Colour
Space Gray
Layout
Layout Size
75% (ANSI-based)
Key Count
77 keys incl. 12 multimedia keys
Language
Arabic / English
Switches & Keys
Key Type
Low-profile ultra-slim keys
Keycaps
ABS, concave
Body
ABS
Connectivity
Modes
2.4GHz dongle, Bluetooth 5.2, USB-C wired
Polling Rate
1000Hz (2.4GHz / wired), 90Hz (Bluetooth)
Multi-device
3 Bluetooth + 1 2.4GHz
MCU
nRF52840
Power
Battery
800mAh rechargeable Li-polymer (3.7V)
Battery Life
Up to 8 months (approx. 1200 hours, lab test)
Charging
USB-C, approx. 2.5 hours; usable while charging
Features
Backlight
None
Software
Keychron Launcher (web), ZMK
Typing Angle
3.2° (fixed)
Operating Temperature
-10 to 50°C
Dimensions & Weight
Dimensions
296 x 130 mm
Height
5.2 mm front, 14.5 mm rear
Weight
425 g
Compatibility
Operating Systems
macOS, iOS, Windows, Android, Linux
Who Is It For?
Office and home users who want a quiet, slim keyboard
Travellers and students who need a light keyboard for laptops and tablets
Multi-device users switching between computer, tablet and phone
Mac and Windows users who prefer a low typing angle
In the Box
Keychron B1 Pro keyboard (Space Gray)
USB-C cable
USB-A to USB-C adapter
2.4GHz receiver
Frequently Asked Questions
How long does the battery last? Keychron rates the 800mAh battery for up to 8 months (about 1200 hours) under lab conditions.
Is it backlit? No. The B1 Pro has no backlight, which helps extend battery life.
How many devices can it connect to? Up to three devices over Bluetooth plus one over the 2.4GHz dongle.
Order the Keychron B1 Pro Space Gray (B1P-K1-AR) from PC PARK with warranty and fast delivery across Saudi Arabia.
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Our Milestones
2023
Expanded our product catalog with the latest gaming and professional hardware, serving thousands of satisfied customers
2024
Launched our online store and delivery service, making tech accessible to customers across Saudi Arabia
2025
Reached a major milestone in customer satisfaction with enhanced after-sales support and warranty services
2026
Continuing to grow as Saudi Arabia's trusted destination for technology, gaming, and custom PC solutions
