You can specify a sound to play for the alarm, a picture to draw, and a message.

可以指定发出警报时的声音、描述警报的图片和消息。

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Fray said he believes such a detector, with a message in a familiar voice recorded on it, will be less confusing to a child than a standard smoke alarm.

弗瑞说，他相信这种录下孩子们熟悉的声音的报警器比一般报警器能让孩子减少困惑。

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Since this program can only display messages or run commands, it refuses to create an alarm that has neither a message nor a command.

因为此程序只能显示消息或运行命令，所以它拒绝创建既不是消息也不是命令的警报。

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It can sound an alarm or send a message to the device.

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No cause for alarm, seems to be the message.

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You can then send a message to the phone, and it will sound an alarm, alerting nearby people to save it for you.

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