( Etymotic also makes the ER-4S and the ER-4B, which are not ... The EtymoticResearchER-4P is a true reference-quality design and is highly recommended. ...
... minutes. Let's see...HeadRoom Supreme, HeadRoom Bag, portable CD player, CDs, EtymoticER-4S Canal Phones....Oh, yeah ... suggests that the ER-4B was simply a ...
Two different approaches to noise reduction in ... The ER-4B is designed for listening to binaural sources (recordings made with a ... EtymoticResearchER-4P ...
For noisy environments like trains or planes, these easily outperform the active noise reduction headphones on the market...If you can't stand something in your ears, you won't like these...It's about the size and weight of a pack of cigarettes...
Find Earplug Super Store EtymoticResearchEr-4b Isolation Earphones For Use With Your Hi-Fi Or Portable and Other Health & Beauty Products Starting at NexTag.com. Read...