DIY Portable Speakers

Written by donna armstrong
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DIY Portable Speakers
Use a water bottle to create a new speaker system. (water bottle image by Radu Razvan from

With all the smart phones and MP3 players available today, portable speakers are a must-have. A do-it-yourself design for portable speakers not only can provide speakers that are convenient, but it also recycles old water bottles and Play-Doh containers. The speakers will easily fit in a cup holder or backpack.

Skill level:

Things you need

  • 16- or 567gr water bottle
  • Craft Knife
  • Marker
  • 2 Play-Doh containers
  • Scissors
  • 2 Small portable speakers with battery pack
  • 2 Velcro, 1 inch wide, 4 inches long
  • 2 Aluminum sheets, 1 inch wide, 4 inches long
  • Soldering iron
  • Earphone cord
  • Batteries
  • Hot glue gun
  • Rotary tool

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  1. 1

    Find the middle of the length of the water bottle, and cut it in half with the craft knife. Cut the earphones off of the earphone cord.

  2. 2

    Remove the battery box from the speakers, and pull the battery pack and circuit board out of the case. Take notes on any wires that have to be unhooked or removed during the process.

  3. 3

    Place the speakers in the lids of the Play-Doh containers, and mark the fronts of the lids where the speakers sit. Remove the speakers and cut a hole in each lid, so the speakers can release sound, but not large enough for the speakers to fall out. Glue the speakers to the lids with a small amount of hot glue. Drill a small hole in the rims of the Play-Doh lids for the earphone wire to go through.

  4. 4

    Slide the battery holder into the side of the water bottle without the hole. Some battery holders will have to be cut down to fit in the bottle. Use the Dremel or rotary tool to trim the sides of the battery holder. Hot-glue the battery holder in place.

  5. 5

    Place the circuit board for the speakers in the other half of the water bottle. The circuit board has to be in the half of the bottle with the hole for drinking so the wires that connect to the phone or MP3 can be pulled out. Make sure the controls are turned toward the outside of the bottle. Outline the control panel parts on the outside of the bottle, and cut out the outlines. Push the circuit board toward the holes and push the controls through the plastic. Glue the board in place.

  6. 6

    Solder the leads from the speaker circuit board to the two wires from the earphone cord. Hot-glue or electrical tape can be used to secure the connection. Solder battery leads to the other two earphone wires.

  7. 7

    Put the speakers into the ends of the water bottle. The Play-Doh lids will slide on perfectly. Separate the Velcro strip and place one side of each 4-inch section on the Play-Doh rims and bottles. Place the other halves of the Velcro strips on the aluminium sheets.

  8. 8

    Bend the aluminium sheets around the bottle to form it. Put the bottle back together, and use the aluminium sheets to hold it. These can be removed, turned upside down, and used as stands for the speakers. Roll up the MP3 or phone connector, and place it in the water bottle hole, then screw the lid on.

  9. 9

    Unscrew the water bottle lid and connect the MP3 or phone to the speakers, remove the aluminium sheets and turn the speaker on.

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