Infrared voice distribution receiving module features more powerful MCU, to improve the machine's control performance. High-performance phase-locked chip makes the lock more precise and each of the selected frequency channel more accurate. Adopt more advanced phase-locked technologies to enable faster and more stable phase-locked speed and eliminate comparing frequency interference. Adopt special mute switch technology to minimize the interference sound. No interference between different channels and with channel selection function that can receive (8/12) channels. Adjustable volume, number of receiving units is unlimited within the valued infrared launching scope. Free fromrestrict of seating capacity, walk around freely within signal launching scope.