一つは音声が全く聞こえない。
二つ目は全く無反応。
三つ目はイヤホン先端が割れていて、全く無反応。
検品してから発送するべきだと思うよ。
There is one that I cannot hear anything.
Another one doesn't react to any command.
There is even one whose tip is broken and doesn't work at all.
I think you should check every items before you ship.
