Mark Levinson No 5909 High-Resolution Wireless Headphones with ANC (Black) - Manual (Page 10)

CHARGE
8 N 0 5909 HEAPHONE / OWNER’S MANUAL
CHARGE
Press and hold (>1 second) ON/OFF button to power ON.
Left earcup LED will show solid white light while unit is on -
Battery level will be displayed for a few seconds at startup on
Right earcup - Green high charge - Orange medium charge
- Red low charge
To conserve battery power, headphones will power OFF after
30 minutes of inactivity (default) - Default can be changed via
app - 30min, 1HR, 3HRS, NEVER
To charge, plug in the USB-C Connector and connect to a
powered USB-A port
NOTE: The headphones power OFF when charging.
Headphones cannot charge and play at the same time.
A solid orange light on the left earcup indicates charging
and a solid green light indicates a full charge when the USB
cable is connected.
Fully Charged
Charging