When using the Android™ smartphone with Android 8.1 or later installed
When the speaker is connected with the Android smartphone via an HFP (Hands-free Profile) BLUETOOTH
connection, tap [Settings] - [Device connection] - [Bluetooth] on the smartphone. The remaining battery power of the
speaker is displayed along with the connected BLUETOOTH device name. For details, refer to the operating
instructions supplied with the Android smartphone.
Note that the remaining battery power displayed on the smartphone may vary from the actual remaining battery
power of the speaker. Consider this information as a reference.
When using the iPhone
While the speaker is connected with the iPhone via an HFP (Hands-free Profile) BLUETOOTH connection, the
remaining battery power of the speaker is displayed on the widget screen of the iPhone. For details, refer to the
operating instructions supplied with the iPhone.
Note that the remaining battery power displayed on the iPhone may vary from the actual remaining battery power of
the speaker. Consider this information as a reference.
Built-in battery life
Approx. 16 hours
Volume level: 36
Approx. 5 hours
Volume level: 50 (MAX.)
The built-in battery life above is measured using our specified music source.
Actual performance time may vary from the listed time due to the volume, songs played, surrounding temperature, and
usage conditions.
When the built-in battery is running low
When the CHARGE indicator starts flashing slowly, the built-in battery is running low and needs to be charged.
If the CHARGE indicator flashes 3 times in orange and goes out when you turn on the speaker, the built-in battery is
empty and needs to be charged.
Hint
You can charge the speaker's built-in battery by connecting the USB cable connected with the speaker to a computer that comes
equipped with a USB charging port as well. However, not all the computers are tested and found compatible with this procedure
and the procedure is not applicable to home-built computers.
As long as the speaker is connected to an AC outlet by a USB AC adaptor (commercially available) or to a computer that comes
equipped with a USB charging port, the speaker's built-in battery is capable of charging itself even while music playback from the
speaker is in progress. However, it may take a long time before charging completes depending on the usage of the speaker. It is
recommended that you turn off the speaker before battery charging.
Note
Depending on the type or specifications of the USB AC adaptor, if you use the speaker at a loud volume, the remaining power of
the rechargeable built-in battery may decrease or the speaker may turn off even while the speaker is connected to an AC outlet
by the USB AC adaptor. This, however, does not indicate a malfunction. If such a case occurs, turn off the speaker and let the
battery fully charge itself before you use the speaker.
The maximum power output will be lower when the built-in battery is running low.
In an extremely cold or hot environment, charging stops for safety. If charging takes a long time, it also makes charging of the
speaker stop. To resolve these issues, disconnect the USB cable, and then connect it again within an operating temperature
between 5 °C and 35 °C (41 °F and 95 °F).
Do not charge the speaker's built-in battery in places where water may splash on it. The supplied USB Type-C cable as well as
the USB port behind the cap are designed neither for waterproof nor for dustproof.