Retekess Case of 1 Transmitter 3 Receivers,Retekess TT101,Wireless Tour Guide System,Church Translation Equipment,256ft Transmission,99 Channels,Used for School,Factory Museum Tour

* AUX audio or MIC input; microphone and aux are the same jack; suitable for walking factory tours (reducing background noise), schools, churches, assisted listening etc * One to many; single transmitter can match countless receivers of the same model; no interference between the receivers; Note:audio tour guide system itself cannot be translated and requires translators * One-button operation; easy and user friendly; one key to pair all transmitters and receivers; one key to turn off the microphone sound; one key to turn off all receivers * 1200mAh rechargeable lithium battery; church translation system is fully charged; transmitters can work continuously for 20h; receivers works 40h; does not need to replace a large number of dry batteries * 80m/256ft ultra-long transmission of; 99 frequency channels means that the simultaneous translation equipment has 99 select IDs allow at least 99 groups to work simultaneously