Debra Audio AU400 4 channel wireless microphone system with 4 handheld mics. These series products adopt UHF frequency and use the international standard common frequency which can be used in all over the world. This product uses an XLR connector. Due to the low frequency and many reasons, traditional wireless microphone usually disturbed by many factors especially by the variety of harmonic which send off by the CD/DVD/VCD/LD and other any digital equipments. Squelch circuit usually analysis the intensity of the RF frequency channel instead of the noise and the needed signal. Using the low traditional wireless microphone in the complex environment or when the signal of the microphone is weak or the microphone is turned off, the squelch circuit many suddenly opened which will result in the receiver sending out a strong burst of noise. It's ideal for church, small DJ KJ stage, bars, birthdays weddings, family parties, conferences, classrooms, small karaoke night etc. Build to Sturdy: Metal designed, cordless microphone receiver and high sensitivity unidirectional handheld microphones, suitable for heavy use. High quality dynamic cartridge of each microphone is specially engineered to limit feedback and interference, picking up sound smoothly and transmitting sound hassle-free. Packing list: Wireless Receiver*1,Handheld Microphone*4,Audio cable*1,Power supply*1,Manual*1
