You can also find the power button and lock screen key on this squiggly cable, as well as another microphone for noisecancellation and improved voice quality.
这根弯弯曲曲的线缆上还能找到开机键和锁屏键,以及另外一个麦克风,用于噪音消除和提升语音质量。
2
The iPhone 4 is 9.3mm thick (a quarter thinner than the iPhone 3GS) with two built-in cameras (one on the front and one on the back with an LED flash), and two microphones for noisecancellation.