the latency is around 40 ms.

if the picture sending through Cosmo C1, but the voice sending through other path, then the picture and voice sending exists 40 ms latency.

Both of picture and voice sending through Cosmo C1, For example, Mount the microphones and Our C1 on the camera together, then the voice and picture will be forced to send through our C1 simultaneously.

In the background equipment, for example: mixing console, director’s station or OBS software, manually set 40ms latency for the audio.