Read real user reviews who bought PTron Boom 4D earphones before you buy. Don't miss comment section to see recent user reviews of PTron Boom 4D earphones. Before moving to user reviews please check important information below. PTron Boom 4D Earphone Video: PTron Boom is a 4D earphone that can play 4D sound using Dual driver moving coil. The wiring and build quality and sound quality all are shown in this video You can grab this earphone here https://goo.gl/dM89hL Reviews: While I've searching for dual driver earphones i found Boom in budget range. coming to to the product build quality is good with tangle free wiring and earbuds are housing with plastic which makes earphones light-weight while using. Earbuds are transparent just to show Dual drivers but looks good. earbuds are comfortable in ears, but some facing little issues but it has to put from over the ear then it's not a problem it's just because dual drive horn design. Coming to sound ...