alaTest has collected and analyzed 18 user reviews of Coby High-Performance Isolation Stereo Earphones CVEM78BLK (Black) from Amazon.com. The average user rating for this product is 4.1/5, compared to an average user rating of 4.2/5 for other products in the same category on Amazon.com. Views about the bass quality and size are overall positive. The price and sound are also appreciated. Some have doubts about the usability and reliability, and there are some mixed comments about the design.