About this app

When Bluetooth is connected, the set application is automatically activated.
Depending on the setting, you can change automatically to the desired volume.
Depending on the setting, you can activate and switch the application from the volume button or notification area.

■ Usage and functions
- Setting usage conditions -
+ Launch the application and set usage conditions in the service setting item.
Earphone device is mandatory, be sure to set it.
Start-up application is optional.
If you are using Android 5.0 (Lollipop) or higher, please turn on "Apps whdth usage access".
If you are using Android 6.0 (Marshmallow) or higher, please turn on "Do Not Disturb access".

+ Add widgets to the home screen as necessary.


- Start the assist function -
+ When starting from an application
Launch the application and turn on or check the assistance service.

+ When starting from a widget
Click on the widget.
A confirmation dialog is displayed, so select Yes.
(Dialogs can also be hidden)

+ When starting from a shortcut (available on Android 7.1.1 or later)
Press and hold the app icon.
Click Start Service from the displayed shortcut menu.

The assist function enters the execution state and waits for bluetooth device connection.
When the connection of the bluetooth device is confirmed, the set application is started up.
Depending on the setting, the volume for the smart device is changed.


- End assist function -
+ When exiting from the application
Launch the application, turn OFF the assist service or uncheck it.

+ When exiting from widget
Click on the widget.
A confirmation dialog will be displayed, so select Yes.
(Dialogs can also be hidden)

+ When exiting from the shortcut (available on Android 7.1.1 or later)
Press and hold the app icon.
Click Stop Service from the displayed shortcut menu.

Assist function is ended, Bluetooth is turned OFF (option).
The smart device volume returns to the state before using the application.

- What is the assist function -
+ Turn Bluetooth on / off. (OFF is optional)
+ Start applications (up to 3) to be used at the same time. (option)
+ When connection of the bluetooth device is confirmed, change the volume of the smart device. (option)
+ With the volume button, switching of applications is possible. (option, until Android 9 or earlier)
+ Applications can be switched from the notification area. (option)
+ Changes the music volume to 0 when Bluetooth disconnected. (option)
　* Depending on the model, sound leakage may occur when the volume is changed to 0.


■ Supplement
+ Application switching by the volume button will not work if an application (such as camera application) that assigns the volume button to another function is set as the startup application.
+ Even if the assist function is active, volume change, application startup, application switching will not work during function setting.
+ Depending on the type of Bluetooth device, it may take some time for the volume to change.
+ Applications can not be switched by the volume button until the volume is changed.
+ If application switching by the volume button does not work, please double click on it.
+ Since the automatic start of the application is restricted on Android 10 or later, it will be started by notification.

+ If Android 6.0 (Marshmallow) or higher has enabled "Bluetooth scanning" with "Location" sttings, you may not be able to correctly determine the intercom device connection.
+ When setting to suppress the consumption of power and memory (activation of suppression application) is being performed, It may not operate normally.
If you experience the following symptoms, connection not recognized display of notification area does not disappear etc. Please remove this application from subjects of consumption suppression.


■ Supported OS version
Ver 4.0 or later.

New features

Fixed permission request method.
Added privacy policy.
Other minor fixes.