Review on TENHZ P4 Pro Sound Isolation Wired Earphone: HiFi Musician Earphones with Four Balanced Armature Drives & Detachable MMCX Cable by Sharon Hill

As universal in-ear headphones they are really good! They penetrate deeper into your ear canal so they feel and work like regular earplugs! The sound isolation is unlike anything I've come across before but since I've only used generic in-ears so far. They are very transparent so there is no exaggeration of any particular frequency, very flat frequency response.