Keychron K2 Max Wireless Mechanical Keyboard (Super Brown, Black)

Number of Keys: 84 (75%)

Switches: Keychron Super Brown Mechanical

Switch Face: South-facing

Number of Multimedia Keys: 12 

Frame Material: ABS / ABS+Aluminum frame

Keycap Material: Double-shot PBT

Keycap Profile: OSA (OEM profile with spherical-angle)

Layout: ANSI

Polling Rate (2.4GHz and Wired Mode): 1000Hz

Polling Rate (BT Mode): 90Hz

N-Key Rollover (NKRO): Yes for both wireless and wired modes

Backlit: 22 types of RGB backlight options plus endless possibilities

Battery: 4000 mAh rechargeable li-polymer battery

Wireless Working Time (Backlit off): Around 190  hours (Lab test result may vary by actual use)

Wireless Working Time (RGB): Around 100 hours (Lowest brightness)

Connection: 2.4 GHz / Bluetooth / Type-C wired

Bluetooth version: 5.1

Compatible System: macOS / Windows / Linux