- Working frequencies: they are available with the following frequency pairs: A 566 MHz / B 536 MHz - A 554 MHz / B 524 MHz - A 550 MHz / B 520 MHz

- Stereo and Bluetooth input for a backing track

- Balanced jack input for wired microphone

- Separate volumes for wired microphone, Wireless A, Wireless B and music.

- Echo on microphone inputs * Stereo output (jack 3.5) or mono R+L (Jack 6.3)