IVA U2002C series is a new generation Dual Channel digital wireless microphone, introduce in digital modulation and high performance audio ADC and DAC, with a low delay of the audio encoder to achieve a high fidelity audio transmission. Simple operation by infrared frequency synchronization, which can cover the frequency range UHF 500-980MHz (depend on the region), stable circuit characteristic, and audio carrier signal transmission is stable with visible range over 30 meters ,encrypted transmission and decoding circuit avoid any interference from outside. Highly cost-effective products provide more options in the field of wireless system.