Mason Jar Speaker & Amplifier

This mini speaker is totally self-contained, so you can hook up your guitar or mp3 player on-the-go.


Adam Wegener and Ron Sloat created by

Adam Wegener and Ron Sloat

read more about the maker

So Jar, So Good

This speaker-in-a-jar is completely self-contained, so you can bring it on-the-go with you for impromptu dance parties, and can hook it up to your personal music player or electronic instrument. Its size is small but its sound is big - a perfect gift for teens and adults alike! Hand assembled in Sunnyvale, CA, USA.

Adam Wegener and Ron Sloat

created by

Adam Wegener and Ron Sloat



Even as kids, Adam Wegner and Ron Sloat loved inventing things, most of which didn't work out exactly as planned. As adults, they started combining their passions for engineering, design, art, and music by making amplifiers out of upcycled materials. Besides wanting to make a cool product, Adam and Ron have always enjoyed the intersection of education and life. They began visiting schools to encourage kids towards sustainability, music, engineering, and education as a whole. "When you connect education with something kids already view as 'cool,' education becomes cool by association. If you can show kids the end goal of what they're learning now, you just might set them on track to start their own successful companies down the road," says Adam.

Made in the USA
Made from
aluminum, wire, glass, metal, circuit board, paper, baltic birch plywood, polypropylene
5" H x 3.5" diameter
Change batteries when music becomes distorted.
Comes with one set of 3 AAA batteries, which should last for approximately 20 hours of use.
2 inch full range driver with 1.4 watt amplifier - perfect for your bedroom, kitchen, or backyard BBQ.
Item ID

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Most of our items are in stock and will ship quickly. Orders for in-stock items placed before 5pm ET Monday through Friday, excluding Federal holidays, will ship:
Economy shipping:
within 8 days, arriving no later than the 9th business day after the order was placed.
Standard shipping:
within 4 days, arriving 5 business days after the order was placed.
Preferred shipping:
within 2 days, arriving 3 business days after the order was placed.
Expedited shipping:
within 1 day, arriving 2 business days after the order was placed.
Express shipping:
will ship the same day and arrive 1 business day later.

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