When you play a video, you need to be able to listen to it at the same time. You need to be able to hear it in your ear. If you have a small phone, you might have to hold it up to your ear.

The best way to solve this problem is to use a volume booster. If you have a phone with a small speaker, it might not be able to produce much volume. Using a sound amplifier can make the sound much louder.

This app is the best sound amplifier for Android. It can increase volume by about 50%. You can set the volume to whatever level you want.

You can listen to music, videos, and other audio files at a higher volume level. You can even adjust the sound to fit your hearing level.