德語點讀筆加工生產(chǎn),德文點讀筆加工生產(chǎn)德語有聲圖書開發(fā)印刷,德文有聲圖書開發(fā)印刷點讀發(fā)聲功能Point and read function翻譯功能Translation function 音量調(diào)節(jié)功能Volume control functionMP3音樂播放功能Mp3 play function選曲功能Arias function選書功能Election of the function耳機(jī)收聽、音箱播放功能Listening to headphones, speakers player自動關(guān)機(jī)功能Automaticclose-downfunction鋰電池充電Lithium battery charging functionUSB下載、U盤功能Can be memory card