ER4S Share definition Flag The best damn headphones in the world. Smooth, neutral, and very musical, and with 40dB of isolation to boot! Upon inserting the ER4S into his ears, PiccoloNamek had an intense eargasm. ER4S by PiccoloNamek August 18, 2006 0 0 Get merch Get the ER4S mug. Buy Now — $32.95 See more merch
