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大阪的株式会社已经开始将DP-L2X数字兼容型立体声头戴耳机投放市场。该耳机的频率响应范围为5Hz～20kHz,耳机的重量为39克。这类数字兼容型头戴耳机已有半数达到了实用化。
Osaka Co., Ltd. has started to put the DP-L2X digital compatible stereo headphones on the market. The headset’s frequency response range of 5Hz ~ 20kHz, the headset weighs 39 grams. Half of these digital compatible headphones have been put into practical use.