A Hi-Fi wireless digital tour guide loudspeaker system with very good resistance against various RF interferences. It is characterized by a lot advantages, such as small in size, highly integrated, high quality sound (with HDCD sound effect, the highest sampling ratio in the field of all our modules so far), broad input voltage range (2.3í¬6Volts), output power up to 60 mw, etc. By adopting 2.4 G ISM band, a free international one, is qualified to ship around the global market. This system supports fixed ID working mode, both point to point and point to mass. It can acts as an auto channel scan. So it is quite easy and convenient to use. Once ID is paired, the receiver or receivers, placed at random, will receive signals from the RF transmitter automatically. If there is interference in the current channel, just change the channel of transmitter ,the receivers can change their frequency to the new channel which the transmitter had just changed. It features audio muting function in case there should be no or weak signals Wherever you are, in popular tourist attractions with sea of people, a crowded bazaar, a noisy factory, or a quiet museum, SOYO 2.4G digital wireless tour guide system(simultaneous interpretation) system will enable you to hear every word of the guideí»s and the speakerí»s. There will be no need to worry about the drop out of distractions or missing the intruductions. SOYO digital wireless tour guide system (simultaneous interpretation) uses micro-waist transmitter and receiver equipped with high-quality directive collar clamp microphones and first-ear headphones. SOYO digital wireless tour guide system (simultaneous interpretation) can simultaneously be used at the same place by as many as 20 teams without interfering with one another.