Smartphone Amplifier

This is an ampliifer for the internal smartphone speaker and it works way better as I expected during the design process!
It ampliifes the output of the internal speaker by a huge amount! Just try it!

Supplied Models:
- Samsung Galaxy S4
- Huawei Honor 6
- Cubot X17 (Removed, to hard to print.. )

I'll add more phones in the future but the existing models may fit for other smartphones aswell. Just compare the dimensions of your phone and the speaker position ;) !