The LIVEPRO L1 has an exquisite and compact control panel. The 4 buttons are for selecting input signals, green flashing means the signal has been selected, then switch the T-Bar, the selected signal will be displayed on the screen seamlessly, the green button changed to red after switched. The MENU button is for menu setting, the SW button is for selecting different functions such as mixing, PIP, transition time setting and the other functions. The left knob is for voice volume controlling, the right knob is for menu setting as well. From the TFT screen, we can preview 4 HDMI signals and easily do menu setting.