How Concert LED Wristbands Work | WSJ Tech Behind

My first reaction to this was, “wow, all that e-waste”. It’s really sad they did not address this issue in the interview.

Do you have to return it or can you keep it as a memento? Do you pay a deposit do you get a refund when you return it?

It would be awesome if this trickles down to smaller events like weddings and school dances.

Fantastic concerts led

very ecological.... the planet thanks you..

Oh wow!!!!

I’m studying electronics engineering and this thing is fun yet I can only imagine the hassle of programming of this simple device, especially this big number of people will be a challenge but I bet these people are really good and experienced.

When I saw The Weeknd, he began to sing the chorus to “I Feel It Coming” and the whole stadium lit up. It was crazy!!

If I were to design a system I also would've gone for something as complicated as the ones in Korea. Not because it's better, but because I'm always overthinking things and making it way more complicated than it needs to be. It's so genius to use old-school tech in such a smart way. It really is a reminder that we need to stay open minded and look at old technologies for true innovation

In Kpop Concert this lights its not new . I'm Attend TWICE concert the light stick is automatically on and the sync is very cool ❤

The first time I experienced this tech was light up ear hats at DisneyLand!
I’ve used the same hats in California and Paris

Feel like these should be recycled and reused. All these are thrown away right after. Tons of waste.

Thank you for this. Now I can sleep...

Can only think of coldplay for this ❤️

They don't want a smart wristband... they just want it to be stupid... 😂

It's neat, but how many are thrown out after every event?

So they repurposed the lights to make a transmitter?!

I feel like they did not explain almost nothing

I came here after going to the Trolls: Band Together Concert Experience 😅

Dont use the wrist. They are easily killed you when they need to 🎉🎉

More waste please 🙄

Wow, what creativity that started from the lowly lighter.

Made from petroleum based plastic as their website states.

Did people not know how an led works?? 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

Coke Studio Bangla Concert 2.0 brought me here?

Didnt know there was such thing as a lit up wristband.

Eh Taylor Swift's Eras Tour the first call out on this?? These are Xylobands and Coldplay where the first ones to do it at their concerts like a decade ago for the Mylo Xyloto tour (hence the name)!!!

waste

So lots and lots of e waste ...

This is great stuff! 🤘👽🤘

Do we get to keep the wrist bands?

In the meantime: Rammstein sets everthing on fire and blows stuff up😂

Taylor swift come again did you said favourite ? Taylor swift More like make me Taylor make me switch to other singer

How to put people into hypnosis on a massive scale

Cool but alot of unnecessary ewaste. You can just have an app that sinks up to whatever color you want display and have fans lift their phone for a mosaic effect.

My flipper got a little excited when hearing about radio fequrences

KPop lightsticks is better

next time, I'm going to a concert, my flipper zero comes with me. Could be a ton of fun!

The vast majority of LEDs that I've seen in the K-pop community are light sticks, so if somebody knows a K-Pop group that utilizes a light wristband instead of a light stick, let me know.

some how I always tend to take them home with me :'(

Beyonce Rennisance Houston show 1 brought me here lol

a lot of RF radiation. verry unhealthy and cancerous ❗❗

Isnt exposure to high powered RF and Infrared rays hazardous?

It’s been 10 years since Coldplay invented this!

LOL! Who would wear this? 😂

the audience concert can take the light bands & owned it??? or this used only during concert, thnx...

What is the cost of each one of those?

A battery and other electronics for two hours to then toss it away? This feels like the most wasteful and ecological idiotic thing ever