A push-button socket is fixedly installed on the wall face of the housing. A compress push button with the extruding ink sheet is arranged on the push-button socket by a compression spring.

壳体壁面上固装按钮座，压缩弹簧将带着挤压墨片的压缩按钮安装在按钮座上；

youdao

youdao

Design and production of the microswitch. Touch switch. Toggle switch. Switch button. Button switch. Headphone socket. Slide switches, USB socket. Self-locking switch, DC socket. Vibration switch.

设计生产微动开关。轻触开关。拨动开关。按键开关。按钮开关。耳机插座。滑动开关。

youdao

Up top, you'll find the notification light alongside the headphone socket, with the power button also sitting along that top edge.

ENGADGET: HTC One V review Mobile

The power button is along that tapered top edge, alongside the headphone socket, while charging and data transfer is handled by the micro-USB port along the bottom.

ENGADGET: Windows Phone 8S by HTC hands-on: a bright Windows phone that holds promise (video)