How to Make a Cool Smartphone Amplifier/Speaker

Here is a very easy tutorial about How to Make a Cool Smartphone Amplifier/Speaker for your smartphone. Try to make it for yourself and enjoy the music loudly. Thank you for watching.... Subscribe to our How-to-Raju Channel here: https://www.youtube.com/user/sachinsfanrajkumar Visit our website: http://www.howtoraju.com/