Assuming that you are capable of holding on to the key, just press the giant red button and a resounding belch will issue forth from your Beer pager beer cozy/coaster.

我们假设你不会把钥匙搞丢，那么只需按钥匙上的红色按钮就行了。 然后你就会听见从你的啤酒杯托发出一声响亮的打嗝声。

youdao

After a fainting spell, a patient would hold a pager-size communicator over his chest and press a button to freeze the recording, so a doctor could upload the data for analysis.

FORBES: Magazine Article

Swipe it with your pager and send it to a pal, or press a button and buy the book.

FORBES: Scanned Goods