The LED indicators on the front of the controller show its current status:
Single LED blinking rapidly — Pairing mode (searching for a device)
Single LED solid — Wirelessly connected in that mode
Two LEDs solid (1 & 3) — Wired connection active (USB-C to Windows PC)
All 4 LEDs blinking rapidly — Charging
All 4 LEDs off (while plugged in) — Fully charged
All LEDs off (unplugged) — Powered off or dead battery
RGB ring turns red and blinks slowly — Low battery, charge immediately

