About the indicators
CHARGE indicator (orange)
| Turns off (while the speaker is turned off) | Charging the speaker is completed. |
| Lights up (orange) (while the speaker is turned off) | The speaker is being charged. |
| Flashes slowly (orange) (while the speaker is turned on) | The built-in battery is running low and needs to be charged. |
| Flashes three times (orange) and turns off | If the CHARGE indicator flashes three times in orange and goes off when you turn on the speaker, the battery is empty and needs to be charged. |
Note
- A speaker that is in use can be charged if it is connected to the USB AC adaptor, though the CHARGE indicator does not light up. In this case, it may take longer to charge the battery depending on the conditions of use. Therefore, it is recommended to turn off the speaker when charging.
- When you use the speaker at a loud volume for a long time, the battery may run low even if the speaker is connected to an AC outlet. As a result, sound becomes low. This is not a malfunction. Turn off the speaker and charge the battery to its full capacity.
(power) indicator
| Turns off | The speaker is turned off. |
| Lights up (green) | The speaker is turned on. |
| Lights up (orange) | The speaker is in the BLUETOOTH standby mode. |
| Flashes once (green) | Each time you press the –/+ (volume) button, the indicator flashes once. |
| Flashes three times (green) | The volume is set at the lowest or highest level. |
(BLUETOOTH) 
PAIRING indicator (white)
| Lights up (white) | The speaker is connected to a BLUETOOTH device. |
| Flashes quickly (white) | The speaker enters the pairing mode. |
| Flashes slowly (white) | The speaker is searching for a BLUETOOTH device to connect to. |
L indicator (white)
| Flashes | The speaker enters the Speaker Add function mode. |
| Lights up | The speaker is operating as the left speaker while the stereo mode of the Speaker Add function is enabled. The speaker is operating as a monaural speaker while the double mode of the Speaker Add function is enabled. |
R indicator (white)
| Flashes | The speaker enters the Speaker Add function mode. |
| Lights up | The speaker is operating as the right speaker while the stereo mode of the Speaker Add function is enabled. The speaker is operating as a monaural speaker while the double mode of the Speaker Add function is enabled. |
EXTRA BASS indicator (white)
| Lights up | You can enjoy boosted bass (Sony-recommended sound quality). This mode is set as the default setting. |
| Turns off | You can enjoy the natural sound quality with reduced bass. This mode is recommended when listening at low volume inside a room. |
