STEELSERIES ARCTIS 9 Guide D'information Sur Le Produit page 16

CHARGING
15
To charge the headset, connect the USB
Charging Cable to the Micro-USB
11
Jack on the headset, and plug the
9
other end into any USB power source.
The color of the Headset LED indicates
the battery level.
Green 100–50 %
Yellow 49–20 %
Red 19–10 %
Red (fast blink) 9–1 %