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Device for spoken commentaries (linguistic explanations), in particular for blind persons
Device for spoken commentaries (linguistic explanations), in particular for blind persons
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机译：语音解说（语言解释）的设备，特别是针对盲人的设备
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摘要
Device having an audio unit 23' which is assigned to an exhibit 1, provided for manual scanning, and is intended for outputting acoustic information relating to the exhibit 1. A plurality of mutually independent switch elements 24 are provided on the exhibit 1 itself in various regions thereof. The switch elements are connected to the audio unit 23', to which a headset (headphones, earphones) may be connected. IMAGE
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