Quick overview from the supplier:
Gaming Wireless Keyboard Bloody WS87, Mechanical, BLMS Linear SW, 87-Keys, PBT Keycaps, Quiet Typing, RGB, Rechargeable, USB+BT+2.4Ghz, EN/RU, Naraka
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Key Style BLMS Switches
Wireless Transmission 1 ms
Connection USB / 2.4G / Bluetooth v5.1
Backlit RGB
System Requirements Windows 7/8/8.1/10/11
