There were problems with the delivery. After charging, the indicator flashed red and blue when turned on. Launch the time sync tool provided on the device and if it is on now, the indicator will be solid red and then flashing. I also connected the included remote control. Not sure if it helps, but now the device is recording. It's incredibly sensitive, tested in my sweatshirt pocket, and picks up voices loud and clear, along with a range of ambient noise (PC fans, 3D printers). However, I have some background noise. Saves the audio in a continuous .wav file with a bitrate of 192 kbps.
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