Sony MDR-NC40 Noise Cancelling Headphone (Black) (Renewed)

hi everybody today I'm going to talk about the sony MDR - NC 40 noise cancelling headphones and these are active noise-cancelling which means they take out the ambient noise and they cancel it out to give you only whatever these the speakers are outputting and they do use a triple-a battery now I've had this for well over five years now and I actually thought that they don't make it anymore so I didn't even bother to review it but they still manufacture it and they still sell it so here you go I really really like these headphones they only got three and a half stars on Amazon and I'm not sure why for the price I think they're really really good quality the the main important thing is here is that you really have to create a good seal on your hairs if you don't have a good seal these will not insulate well and they will not cancel out then the noise as well as they should so I would say