Charging the battery via a computer
The headphones contain a rechargeable lithium-ion battery which should be charged before using it for the first time.
- Press and hold the POWER button for about 2 seconds until the POWER indicator shuts off to turn off the headphones.
- Connect your booted computer to the micro USB port (Type B) (
PC/CHARGE) of the headphones using the micro-USB cable (supplied).
The POWER indicator lights up in red while the battery is being charged and the indicator turns off when charging is completed.
Charging is completed in about 4 hours*1.
If the battery is not charged properly, the POWER indicator will flash in red.
*1 Time required for empty battery to recharge.
When the battery cannot be charged
- Check that the headphones and your computer are firmly connected via the micro-USB cable (supplied).
Use only the supplied micro-USB cable. Do not charge the battery using any other USB cable.
- Check that the computer is turned on and not in standby, sleep, or hibernation mode.
If the computer enters standby, sleep, or hibernation mode while the headphones are connected to the computer, the POWER indicator turns off and the battery charge will not be completed properly. In this case, change the computer settings and then charge the battery again. - Check that the headphones are directly connected to a computer using the micro-USB cable (supplied). Charging may not be completed properly by an indirect connection, such as via a USB hub.
Battery life*2
Approx. 7.5 hours*2
*2 Time may vary depending on the immediate environment or conditions of use.
Note
- When the headphones had not been used for a long time, it may take a while for the POWER indicator to light up in red. In this case, do not disconnect the micro-USB cable from the headphones. Wait until the POWER indicator lights up in red.
- Charge in an environmental temperature of between 5°C and 35°C. Otherwise, the battery may not fully charge.
- If the battery is fully charged, the POWER indicator may blink and go off, and charging may not start. This is not a malfunction.
- When storing the headphones for a long time, avoid a place subject to high temperatures. When storing the headphones for more than a year, charge the battery every six months to prevent over discharge.
- If you haven’t used the headphones for a long time, the life of the rechargeable battery may become short. This will improve when you repeat the charging and discharging process several times.
- For system requirements for a computer that can charge the battery using a USB, see ”Compatible operating systems (Windows)” or ”Compatible operating systems (Mac).”