Sony SRS-XB402M Help Manual page 10

20% or more: "Battery about 40%."
10% or more: "Battery about 20%."
Less than 10%: "Battery level low, please charge."
Less than 10%: "Battery level low." (While the speaker is charging.)
Built-in battery life (using the BLUETOOTH connection or the Wi-Fi connection)
About 12 hours
The volume level of the speaker is set to 31.
The lighting function is set to off.
The Sound Mode is set to STANDARD.
About 11 hours
The volume level of the speaker is set to 31.
The lighting function is set to on. (factory default settings)
The Sound Mode is set to EXTRA BASS. (factory default settings)
About 4 hours
The volume level of the speaker is set to maximum (50).
The lighting function is set to on. (factory default settings)
The Sound Mode is set to EXTRA BASS. (factory default settings)
The built-in battery life above is measured using the 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 voice guidance says "Please charge" and the CHARGE indicator and
built-in battery is running low and needs to be charged.
When the CHARGE indicator and
needs to be charged.
Using a USB AC adaptor (commercially available) for charging
Connect one end of a micro-USB cable compliant to the USB standard (commercially available) to the DC IN 5V
connector on the speaker and the other end to a USB AC adaptor (commercially available). Then, connect the USB AC
adaptor to an AC outlet.
The speaker turns on automatically.
(power) indicator flashes 3 times and turns off, the built-in battery is empty and
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(power) indicator flash slowly, the