Audio-Technica ATH-ANC300TW QuietPoint Noise-Canceling True Wireless In-Ear Headphones - Manual (Page 9)

8
Charging the battery
• During charging, the 3 charging indicator lamps light and flash as follows to indicate the battery level of the charging
case (it may take several seconds for the indicator lamps to light).
Battery (charging)
status of the
charging case
Charging indicator lamps White Off
Lamp display Light pattern
Only left lamp
flashing
Only center lamp
flashing
Only right lamp
flashing
(Fully charged)
Lit in white for 10
seconds, and then
turns off
Charging error All lamps flashing
4. When charging is complete, disconnect the USB charging cable (USB Type-A side) from the computer.
5. Disconnect the USB charging cable (USB Type-C side) from the battery jack on the charging case.
• When charging, make sure to use the included USB charging cable. The product may not charge with cables other
than the included USB charging cable.