YINYOO KBEAR OS1PRO in Ear Monitor Earbuds for Musicians, HiFi Headset Earphones Headphones Wired, Graphene Dynamic Bass Boosted, Noise Canceling, Auriculares Detachable Cable (with mic, Black)

The story of OS1PRO This earphone is jointly launched by KBEAR and Whizzer.

It boldly uses graphene element, which is an innovation in the history of Hi-Fi earphone technology.

Of course, before the new graphene technology was developed, the company suffered a lot, tried again and again, spent a lot of money on R&D, and finally succeeded.

We can achieve the best sound without using a hybrid drive.

We are not bragging for we have received lots of real users' listening experience.