L!BER Technology from Boston, MA., created a wearable whose display design can be changed continuously. A combination of E Ink and NFC makes this happen. And: It needs no charge!

It is simple to use:
•    Create or choose a design from thousands of unique designs in the tago app.
•    Download it on to your smartphone
•    Tag it onto the bracelet in the go, anytime anywhere without having to recharge it ever!
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