The USB Receiver is faulty, but they keyboard can still be used as a wired keyboard

ROG Falchion NX 65% wireless mechanical gaming keyboard with 68 keys, wireless Aura Sync lighting, interactive touch panel, keyboard cover case, ROG NX switches, and up to 450-hour battery life

Compact 65% layout masterfully incorporates arrow and navigation keys, in a 60% keyboard frame
ROG NX Mechanical Switch with fast actuation and ROG-tuned force curves for great keystroke feel and feedback
Learn more about ROG NX switches
Interactive touch panel makes it easy to adjust and customize controls
Dual-mode connectivity via wired USB and 1 ms at 2.4 GHz RF, and up to 450 hours of battery life* offer stable, long-lasting performance (*with RGB lighting off)
Durable and long-lasting ROG PBT doubleshot keycaps
Innovative keyboard cover case provides on-the-go protection
Wireless Aura Sync with per-key RGB lighting