Equipped with the latest wireless technology and UHF dual-channel in one 2-in-1 Base Module to picks up weak signals and prevents signal interference.  Clear LCD screen that can allow you to check AF (Audio Frequency) and RF (Radio Frequency) signal and battery levels.  One 2-in-1 Base Module has two built-in receiver units (Receiver A and Receiver B).   Easy to select channels with pre-set frequencies.  Each microphone has 32 channels. There are a total of 64 channels in two microphones.   Easy and convenient mounting for portable rack.   Adjustable antennas for different angles for better receive signals sensitivity.