It has glow caution light, nightlight, direct current output function that could emergency charging for mobile phone, digital goods and so on and has FM radio function.
且具有红灯闪烁警示功能；夜灯和射灯功能；直流输出功能(可向手机、数码相机等产品应急充电)和FM收音功能。
The digitized FM system is actually a Direct Digital Synthesis (DDS) system that the frequency of the output is controllable.
该方案实际上是一个输出频率受控的直接数字频率合成(DDS)系统。
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