Keychron B1 Pro 75% Ultra-Slim Wireless Keyboard (Reto Blue) (B1P-K11)

The B1 Pro is an ultra-portable, lightweight wireless keyboard that supports 2.4GHz, Bluetooth, and wired modes. With ZMK customization, you can connect your phone, tablet, PC, and Mac simultaneously using three Bluetooth connections and one dedicated 2.4GHz dongle.

SPECIFICATIONS

Number of Keys: 77 (75%)
Number of Multimedia Keys: 12 
Frame Material: ABS
Keycap Material: ABS
Layout: ANSI
 Polling Rate 1000 Hz (2.4 GHz & wired) / 90 Hz (Bluetooth)
Backlight: Non-Backlit
NKRO Support: No

CONNECTIVITY AND POWER

Battery: 800 mAh rechargeable li-polymer battery
Wireless  Working Time: Up to 8 months
(Lab test result may vary by actual use)
Charging Time: Around 2.5 hours
 Connection: 2.4 GHz / BT / Type-C Wired
Bluetooth version: 5.2
Bluetooth Device Name: Keychron B1 Pro
Compatible System: macOS / Windows / Linux

PHYSICAL UNIT

Dimension: 296 x 130 mm (11.65 x 5.11")
Weight: 425 g / 0.94 lbs
Height (front): 5.2 mm (0.2")
Height (rear): 14.5 mm (0.57")
Typing Angle: 3.2º
MCU: NRF52840-QIAA-R_AQFN73
Operating Environment: -10 to 50℃