Can I use two Singing Machine SMM107 wireless microphones with my karaoke setup?

[MacMadison]

Unfortunately, you cannot use two Singing Machine SMM107 wireless microphones simultaneously with a karaoke system, even if it has two microphone inputs. These microphones operate on the same signal frequency, which causes interference when both are active at the same time. For optimal performance, it is best to use only one Singing Machine SMM107 microphone at a time with your karaoke system.