The pen contains a microphone, speaker and camera.
这种笔包括麦克风，扬声器和相机。
Contributing to their size are the installed microphone, speaker, and antenna. The devices also need a larger battery to power the complex functions of the phone.
内置话筒、扬声器、天线都使体积难以缩小，而这些新型装置也需要体积较大的电池来支持其复杂的功能。
Contributing to their size are the installed microphone, speaker, and antenna. The devices also need a larger battery to power the complex functions of the phone.
内置话筒、扬声器、天线都使体积难以缩小，而这些新型装置也需要体积较大的电池来支持其复杂的功能。
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