> Charging


When charging the headphones, be sure to use a USB to AC adapter with DC 5 V power output to avoid malfunction or abnormal heat generation.

Use only the supplied charging cable to charge the System.

Using the supplied charging cable, connect the System and a commercially available USB conversion adapter or a computer while the computer is on.

1Open the cover.

charging 1 EC20

2Connect the charging cable provided to start charging.

Insert the USB AC adapter into the AC outlet to start charging.

charging 2 No-PC charge EC20 + Charge 2 Dongle 1st-V


The indicator lights up in red, and charging starts.

The charging time is approx. 3 hours. When charging is complete, the indicator goes out.

gif charging_EC20

Operation is not possible while charging.

The System cannot be charged when the temperature protection function is in operation. In that case, perform charging within the usage temperature range (5 °C (41 °F) to 40 °C (104 °F)).