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Cobble Bluetooth-luidspreker by Eric Wu

Cobble Bluetooth-luidspreker by Eric Wu is a highly esteemed winner of the very prestigious 2025 A' Design Award in IJzer in Consumentenelektronica Competition Category.


IJzerConsumentenelektronica· 2025

Cobble Bluetooth-luidspreker

by Eric Wu

Client: EW Design

A' Design Award in IJzer Winner in Consumentenelektronica Category

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Verified Award Winner

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Colors

The Design

About Cobble Bluetooth-luidspreker

Cobble is een Bluetooth-boekenplankluidspreker met een interactief bedieningspaneel aan de bovenzijde. Vier magnetische pinnen kunnen in verschillende patronen op een raster worden geplaatst. Wanneer een vooraf ingesteld patroon is voltooid, speelt de luidspreker een opgeslagen geluidsprofiel af, zoals een natuurgeluid of een loop van witte ruis. Cobble functioneert ook als een gewone Bluetooth-luidspreker voor audio van een verbonden apparaat. Het plaatsen van de pinnen doet denken aan het bordspel Go en nodigt uit tot een kort moment van rustige concentratie. Het prototype maakt gebruik van een houten behuizing, zandgestraalde acrylpanelen en LED-lichtstrips.

The Recognition

About the A' Design Award in IJzer

Cobble Bluetooth-luidspreker is winnaar van de A' Design Award in IJzer, een prestigieuze erkenning die wordt toegekend aan goede ontwerpen die voldoen aan de professionele en industriële eisen die worden verwacht van goed ontworpen creaties. Winnaars in IJzer tonen grote vaardigheid, hoge specialisatie, deskundig inzicht en het creatieve vermogen van hun makers. Cobble Bluetooth-luidspreker wordt verwacht een hooggewaardeerde, bewonderde en gekoesterde creatie te zijn die praktisch en innovatief is. Dit ontwerp dat de A' Design Award in IJzer heeft gewonnen, integreert de beste praktijken uit de sector en heeft bekwame technische kenmerken die verbonden zijn met knowhow en talent. Cobble Bluetooth-luidspreker wordt gerespecteerd om zijn grondigheid en is ontworpen om verbeteringen van de levenskwaliteit te bieden die helpen de wereld een betere plek te maken.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties
Cobble is a speaker with an interactive interface at the top. The user has access to 4 pegs that they can place in various patterns. When preset patterns connect, the speaker plays a saved tone. The speaker is made with the concept of "inadvertent mindfulness." Studies have found that the simple action of concentrating on one's actions offer moments of respite. By placing pegs, much like how one places stones in a Go game, the user enjoys a moment of peace.
Dimensions & Packaging
7 1/2" (width) * 7 5/16" (depth) * 2" (height)
Tags
Speaker, Office, Mindfulness, Audio, Music
Production Technology
The prototype was constructed with a wooden casing with a four-panel construction. Sand-blasted acrylic panels are used to diffuse the lighting from LED light strips. The prototype control panel was made from an Arduino nano and will be replaced with more efficient chips in mass production. We experimented with various sensing methods and settled on magnetic sensing with Hall effect sensors as they appeared to be the most reliable.
Design Challenge
The hardest part was figuring out the sweet spot of a big enough surface area and a compact enough footprint, the product being a shelf speaker after all. People wanted to engage with the interface but too much of it offered diminishing returns and research participants had more complaints of space constraints.
Research
User research was conducted in collaboration with co-working spaces. We tested hypotheses like the following:
- How much spacing and how big do people prefer the pegs to be
- How many rows and columns work the best, offering novelty and comfort without overloading the user
- What footprint works the best without sacrificing too much room for interaction
Inspiration
The design originated in a desire to question the prevalence of active mindfulness practices today. We have meditation apps, mindfulness sessions offered by corporations, and many more. While mindfulness is great, there are alternative activities that humans go to for similar purposes, without bearing the label of "mindfulness." Go, the Asian board game using stones, was a primary inspiration. What if we could have something built in that stimulates a sense of mindfulness, just like Go?
Project Duration
Duration: 6 months
Location: Rhode Island, United States
Operation Flow
The product behaves like a normal bluetooth speaker, so the user can connect to it with an end device and play whatever they want.

The unique interaction is that it can save and activate various sound profiles, which can be activated via placement of the magnetic pegs. The user would have to download a mobile app to change the default profiles, which are nature and white noise sound loops.
Team Members
Eric Wu
Image Credits
Photos: Eric Wu

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