In-ear phones like Etymotic's ER6 go deep into the ear canal.

像音特美 ER6 这样的内置式耳机可以深入耳道。

youdao

In-ear phones can cost more than the music player itself - but that's no deterrent to music fans.

入耳式耳机可能比音乐播放器本身更贵，但是也并没有威慑到音乐迷。

youdao

They could make some small improvements here and there, but overall the HJE900 are some really grand sounding in-ear phones.

其他耳机可以在某一方面有所提高，但是900已经是非常非常棒了。

youdao

With The Fly, for example, users can draw a calculator and then touch the numbers to trigger a calculation heard through a speaker or ear phones.

WSJ: The Shape of Computers to Come?

Also annoying when you ask them something without realising they are oblivious to your voice because they have those small ear phones that you hadn't noticed.

BBC: The pleasures and perils of the open-plan office

We looked over and saw a guy alone at a table, holding one of those giant, newfangled portable phones to his ear.

FORBES: Cell Phone Time Machine