由语音模块、控制电路、喇叭、电源和外壳构造成的放音器，可以用来播报产品信息，安全提示性语句，门铃音乐或警报声音的工具，在信息传播上有很广泛的使用。
智能语音提示系统是一种可对语音存储进行修改的语音提示器。
The intelligent voice prompt system is one of the voice prompt equipments which has the ability of rewriting records of voice.
利用反射式近红外传感器及语音录放组件，研究了汽车倒车防撞语音提示器。
Using reflective near infrared sensor and voice record-reproducing assembly, the present article studies the voice anticollision-prompting device for backing an automobile.
利用超声波智能测距传感器及语音录放电路，设计了机动车倒车防撞语音提示器。
Using ultrasonic wave intelligent distance-measuring sensor and voice record-reproducing circuit, a voice anticollision-prompting device for backing an automobile is designed.
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