This wireless microphone adopts advanced UHF antijamming chip which can effectively block noise and restore good sound quality There are also highquality pickup microphones which can restore beautiful sounds and make the overall sound effect smooth natural true and accurate The wireless microphone system is equipped with four pure copper core antennas the signal reception is more stable and the antiinterference ability is strong The signal coverage is wide and the effective operating distance in open space is up to 260 feet Moreover the fourday antenna can be retracted freely without taking up space which is convenient for storage and carrying This microphone system automatically pairs the frequency when it is turned on and the receiver actively tracks the frequency point Stable connection even over long distances The operation is simple and convenient no matter the novice or the proficient can use it with confidence The wireless microphone system has a builtin energysaving lithium battery And there are a variety of microphone combinations for you to choose from suitable for a variety of occasions For example speeches conferences churches etc PackingList Receiver1 Bodypack4 Lavalier Microphone4 Headset Microphone4 Power Supply1 65mm Audio Cable1 Manual1