Innovation might bring us a speaker as thin as your credit card that you can insert in your wallet and carry it anywhere. “Card Speaker” concept was born out of the idea to keep a device really slim that you don’t need a bag or anything bigger than your wallet to carry it. Slide the speaker in one of your wallet’s credit card slot, simply take it out to use it and press the “activate” button. the design is possible due to FFL (Flexible Loundspeaker) and TFB (Thin Film Battery) technology.
Designer : Jeabyun Yeon
The only problem I see here is that the audio jack would surely be thicker than the unit itself. Unless there is a cable attachment appendix?
We don't think this concept features an audio jack, it connects via bluetooth to your music player.