Maker of high-end headphones, Etymotic, has recently announced that it has partnered with the UK's Advanced Communications Solutions (ACS) to offer its hf2 headphones with silicon earbuds that are custom-molded to fit the contours of a wearer's ear. This process, performed by ACS, involves pouring a fast-setting compound into a user's ear and then using the mould to produce the earbud. This result
