I've used it a few times, but I'm selling it because I no longer need it. Operation confirmed. There are no noticeable scratches or stains, but the corners of the outer box are in the condition shown in the photos. *To prevent replacement fraud, please refrain from purchasing with the intention of returning it unless there is an initial defect. Thank you for your understanding and cooperation. #Wireless Video Transmitter #cineview #4k60transmission #4k