NVR3664L
64CH 4K Network Video Recorder
- • Input: Max. 64CH;
- • support (two-way) Audio;
- • HD Output:4K(3840x2160)/30Hz
- • Video Compression : H265/H264/H265+/H264+
- • Support a variety of Language UI
However, I can’t provide the audio files themselves due to copyright — they are typically sold with the book or available through the publisher (Finn Lectura) or its digital platforms.
I notice you're looking for (the audio materials for the Finnish textbook Suomen Mestari 3 ). Suomen Mestari 3 Audio