The effect is very good, very good! For only $6, it is easy to say that they are definitely worth it. Drivers are the same kind like in most headsets nowadays, will fit into pretty much any headset that declare 40mm drivers. No more sweaty ears and I can hear people talking to me IRL. Landed up exchanging for the coral color in size 5 and was perfect Albeit snug but used a shoe stretcher as always and fitsg reat. 5’s ON my foot. Came and bamboo was broke and tops dont lock on good I guess you pay for the brand name though. Very dissatisfied customer. I wish there was an audio track FWD & REV button but would of bought something else of that was important.