Keychron B1 Pro

In the Box:
1x Keychron B1 Pro Wireless Keyboard
1x USB 3.0 to Type C Cable
1x Type A to Type C Adapter
1x Type A 2.4GHz Receiver
1x Silicone Skin

Features:
- Number of Keys: 77
- 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
- Battery: 800 mAh rechargeable li-polymer battery
- Wireless Working Time: Up to 8 months
- 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
- Dimension: 296 x 130 x 14.5mm
- Weight: 425 g 
- Customizable Driver
- Easy to use, plug & play