DIY Smartphone Speakers – Volume Boosters

What you need: 1) Empty Toilet Paper Roll 2) 2 Paper Cups 3) Paper Cutter 4) Scissor 5) Spray Paint (Optional) Instructions: 1) Take an empty paper roll and set it down horizontally. Place the base of phone in center of roll and trace it with pen or pencil. 2) Cut the traced portion with Read More…