Its small similar to the Android Volume control .
It’s very useful in case of:
Volume keys stops working.
Case/Flip Cover that hinders pressing Volume keys
And for friends like me, I always want to avoid pressing physical phone button to
saving volume keys from tearing off ;)Volume Button is exactly the same as Android Volume .
1. Adjust Ringer, System Volume, Media, Notification & In Call Volume
2. With the White Background and dark controls, visibility in sunlight are high.
3. Access any time without closing app. as its have optional Permanent Notification option.
4. Fast access as its directly accessed from notification: Volume in notification.
4. Consumes NO battery at allSo light simple and easy to control different volumes.
Its fast & smooth.

// Option A // 5e7015

To Volume Button mod from happymod.completedownload.net.
You need enable the option "Unknown Sources".
1. Click on the above link to Volume Button mod APK.
2. Save the file in your device s folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B // 5s5x38

To Volume Button from HappyMod APP, you can follow this:
1. Open your browser and the HappyMod APK file from happymod.completedownload.net - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android s and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Volume Button in HappyMod App.