HQ54: Plug Type: 1 X 3.5mm Jack
Micro With Noise Cancellation
Med Size Around Ear, 40mm Driver Unit
Perfect Comfort, Adjustable Headband
Foldable Microphone , Easy volume control
Cable Length: 1.8m
Weight: 203Gr

K515: Switch Life: 8 Millions Times
LED: RGB Rainbow Backlit & Illumination
Total keys: 104, Media Keys: 12
Anti-ghosting: 19 Keys
Cable Length: 1.6m nylon braided cable

VX7: 8000 DPI, Sensor: Optical Gaming
Switch lifetime: Huano 10 Million Clicks
Six Independently Programmable Buttons
LED: 4 Colors
Polling Rate : 125Hz
Cable Length: 1.8m nylon braided cable
Software available