闹钟，加上定时器功能包括：音乐闹铃，摇到打盹，下报警时间，定时器倒计时得多。
Alarm clock plus timer features include: music alarm, shake to snooze, time to next alarm, timer countdown, much more.
设计了一个由微波发射器、555定时器、电压比较器和继电器组成的具有延时功能的自动报警器。
The paper designs an automatic alarm with the time delay function which composed by the microwave launcher, 555 timers, the voltage comparator and the relay.
TFS4还有4种不同的声音报警，且音量可调至隔着很大的房间都可以听得很清楚，是一些非常嘈杂工作环境中的理想定时器工具。
The TFS4 has four distinctive alerts with an adjustable volume control that makes it easy to hear from across a large room - making it the ideal timer for noisy work environments.
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