T3K Build A Boombox Speaker

T3K Build A Boombox Speaker T3K Build A Boombox Speaker T3K Build A Boombox Speaker

T3K Build A Boombox Speaker


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  • A DIY speaker that look just like a classic boombox
  • No batteries or wires required
  • Amplifies the speakers on your smartphone
  • Great for switching music on the fly at parties

Safe Shopping


Amplify your music with this ingenious, non-electronic smartphone amplifier designed like a classic boombox - a build your own set, this is ultimate in DIY retro cool.

Containing all the components you need to create the perfect music amplifier, simply follow the included instructions to complete the internal sound amplifier, then add the finishing touches of the classic boombox cardboard surround for your own cool and quirky version of a music culture icon.


  • One Build A Boombox Speaker
  • A brilliantly fun and stylish retro amplifier
  • The DIY retro smartphone amplifier
  • Build your own version of a classic boombox
  • No wires or batteries needed
  • Works with most types of smart phones
  • Instructions included

Delivery & Returns


Standard - 2 to 3 Working Days - £2.99

Free Standard Delivery for orders over £20

Next Day - 1 Working Day - £4.99

All UK orders are tracked. For full details, please visit our Delivery Page.


Our shipping rates to your country are simple. One flat rate, no matter the size of your order:

£4.99 - France, Germany, Ireland and The Netherlands.

£6.99 - Australia, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Greece, Hungary, Latvia, Lithuania, Luxembourg, Poland, Portugal, Slovakia, Slovenia, Sweden and The United States.

£9.99 - Canada, Iceland, Italy, New Zealand, Norway, South Korea, Spain and Switzerland.

Delivery to the European Union - 5 to 10 working days.

Delivery to the Rest of the World - 7 to 15 working days.

For full details, please visit our Delivery Page.


Need to return an item? No problem!

Free UK returns 12 month warranty on all purchases

You can cancel your order and return any unwanted or unused items within 30 days. In the unlikely event that your item is faulty, full instructions can be found on our Returns Page.