Help Guide
Wireless Speaker
ULT FIELD 1
Sound becomes low while in use
The sound may become low in the following cases. This is not a malfunction.
When the built-in battery is running low and the CHARGE indicator flashes slowly, while the speaker is being
powered by the built-in battery only.
When the rechargeable built-in battery is running low as a result of long-time use of the speaker at a loud volume
even though the speaker was connected to an AC outlet by a USB AC adaptor (commercially available) or to a
computer that comes equipped with a USB charging port.
When the ambient temperature of the speaker is high.
If the sound becomes low while in use, follow the procedure below.
Related Topic
Charging the speaker
5-057-417-11(1) Copyright 2024 Sony Corporation
Turn off the speaker.1.
Charge the built-in battery sufficiently.2.
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