Coffee + Bakery

  • 742 Congress Street
  • Portland, Maine 04102
  • (207) 760-4440

Cafe + Roastery

  • 122 Anderson Street
  • Portland, Maine 04101
  • (207) 760-4440

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Tandem DemerBox Collab


We've known James Demer since the very, very early days of Tandem. He was an early adopter and we bonded quickly. He even donated his entire record collection to the roastery a couple years back on the strict condition that we accept the entire thing. The collection was full of goodies like Green Day's Dookie on pink vinyl, Brian Eno's Green Worldand The Housemartin's London 0 Hull 4 just to name a few.Bottom line is that James Demer is a cool dude who makes loud speakers.

This is our second collaboration with DemerBox. This time around we are offering a super limited run with Tandem imagery laser-etched into the front and back of the boxes. Each Tandem / Demer Box also comes with a box of Time and Temperature instant coffee in order to fully prepare you for any upcoming activity or catastrophe.

More about Demer Boxes :

*Up to (6) six DemerBox speakers can be paired together / multiple Bluetooth Speaker Pairing will not work with the original DemerBox.

  • Incredibly Loud, Clear Sound, Powerful Bass: With crisp highs and punchy bass our professional-grade sound excels, providing the soundtrack loud enough for your outdoor adventures.
  • Waterproof: Includes a Port Plug that installs quickly to become fully waterproof. Never worry about rain at your backyard party or the speaker falling overboard again!
  • Stores Your Stuff: DemerBox is a waterproof case that opens to keep valuable items like your wallet, keys and phone safe and dry inside.
  • A Crushproof Powerhouse:Built in a crush-proof Pelican case, DemerBox lasts an incredible 40 hours between charges. Plus, it has internal USB charging to keep your devices juiced up for your entire adventure!
  • Built to Last: You don't like adding to landfills and neither do we. That's why we built a fully serviceable speaker designed with sustainability in mind. In the unlikely event that there's an issue, DemerBox can fix it.
  • Globally tested: Each DemerBox is handbuilt in the USA with domestic and globally sourced parts and was developed from extensive durability tests on every continent and environment imaginable. Wherever you go, DemerBox has been there!
  • Portable: DemerBox’s compact size and light weight makes it easy to take anywhere. Size: 8.41” x 6.76” x 3.87” (21.4 x 17.2 x 9.8 cm); Weight: 1.34 lbs (0.6 kg)
  • Each DemerBox includes an AC charger, 3.5mm aux cable and Port Plug.
  • 30-day satisfaction guaranteed!