InfoComm 2018: Denon Professional Shows DN-300R Solid State and USB Audio Recorder With Redundancy - YouTube
Denon Professional - DN-300R
萬聲影音有限公司- DENON DN-300R MKII Solid-State SD/USB Audio Recorder The DN-300R MKII records to both SD and USB media simultaneously – perfect for recording conferences where the client needs
Amazon.com: Denon DN-300R MKII Grabador de audio SD/USB de estado sólido : Todo lo demás