What you can see here is a white earphone with a 100% logo on it. It comes from the official 2014 Perfect Concert Goods merchandise. It’s perfect for 100% fan or a KPop fan in general.
You’ll get a beautiful made earphone in a plastic package with the 100% logo black and white sticker on it.
The price is $25.99 but it's quite affordable for an official good.
If you prefer a bigger headset you probably should check out this KPop Logo Headset.