The LD Systems U508 HHC 2 is a dual wireless vocalist system with 2 condenser handheld microphones - Automatic channel search, one-touch infrared synchronization and OLED display. True Diversity. Bands 823 - 832 Mhz, 863 - 865 Mhz. 2 x 96 Channels (8 groups of 12 channels). Selectable transmit power between 2, 10 or 30 mw, frequency response from 60 Hz to 16 kHz and a total harmonic distortion of less than 0.3%. Option to customize them with an identifying name. Balanced XLR or Unbalanced Jack receiver output (With Instrument or line level switch). Mix Out. 3 systems can be used simultaneously.