earpiece
n. (头戴式)耳机,听筒;眼镜脚
复数 earpieces
例句
The dongle ACTS as both an earpiece and a controller for the phone.
该适配器既是听筒,也是控制器。
Users can also use the speakerphone function or a wired earpiece to gain some distance.
用户可以通过开启免提功能或有线耳机来获得这个距离。
The case has a mini-LCD that shows battery and earpiece battery levels along with current Bluetooth status.
皮套还拥有一块微型液晶显示屏,显示电池和耳机电池电量、以及蓝牙当前状态。