Introduction: How to Build Cell Phone Speaker Amplifier
This set of instructions will help those who need a cheap and easy way to boost sound volume on their smartphone.
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Step 1: Step 1
1. 2 styrofoam cups
2. 1 paper towel tube
5. Scissors or exacto knife
Step 2: Step 2
Use ruler to find the center of paper towel tube and mark with Sharpie.
Step 3: Step 3
Trace base of smartphone (or side the speaker is located) around center point, parallel with tube.
Step 4: Step 4
Trace end of tube on lower side of each cup.
Step 5: Step 5
Cut out traced regions in cups.
Step 6: Step 6
Cut out traced region in tube leaving a half inch flap inside the traced region on each end.
Step 7: Step 7
Slide each cup onto either end of the tube laying the cups on their sides.
Step 8: Step 8
Choose song on smartphone (for easier access).
Step 9: Step 9
Place speaker end of smartphone into the tube slot.
Step 10: Step 10
Turn on music and enjoy your new speakers.