The bottom line: Despite its finicky controls, the Plantronics Discovery 975 is a stylish headset with a comfortable fit, a great feature set, and excellent call quality.
底线是：尽管挑剔的控制，发现缤特力975是一个舒适的适应，一个伟大的功能集时尚耳机，和优秀的通话质量。
The good: The sound ID 400 is a slim, lightweight headset with excellent call quality, three personal-listening sound modes, multipoint technology, and a comfortable fit.
好：编号400的声音是一种超薄，具有出色的通话质量，三个人，听声音模式，多点技术，适合轻便舒适的耳机。
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