Aula k81 vs f68 vs F2183 Mechanical Hot-Swappable Gaming keyboard with RGB

Multifunctional FN key
Number of keys: 87 keys
Pluggable mechanical switch
RGB switchable lighting effects
Lithium battery: rechargeable lithium battery 2000mAh
Charging voltage/current: DC 5V/≦450mA
Rated voltage: DC 3.7V
Battery life: ≧ 25 hours (default lighting effect)
≧181 hours (with backlight and side lights off)
Operating system: WIN XP/WIN7/WIN8/WIN10
Model: F68
Number of Keys: 68 Keyss. Knob
Switch Color: White Switch
Connectivity: Wired, Bluetooth, Wireless 2.4G
Features: RGB, All Keys Anti-Ghost
Model: K81
Connection: Wireless, Bluetooth, Type-C wired
81 keys with 18 RGB Lighting Effect
100 percent Hot Swappable
Toggle Switch design, Multifunction Button