> Preparation > Charging the Headphones
Charging the Headphones
Charge the headphones before using.
When using a commercially available USB conversion AC adapter, make sure to choose one with an output voltage of DC 5 V and output current of 1 A and above. Otherwise, it may result in malfunction or abnormal heating.
Use only the supplied charging cable to charge the headphones.
5V TYPE
L Side
The indicator lights up in red, and charging starts.
L Side
The charging time is approx. 4 hours. When charging is complete, the indicator goes out.
Operation is not possible while charging.
The headphones may stop charging if the temperature exceeds the charging temperature range (5 °C (41 °F) to 40 °C (104 °F)). (The indicator light goes out.) When this occurs, resume charging in an environment that falls within the charging temperature range.