1.True diversity dual microphone four receivers and antennas, effectively overcome the dead angle frequency, UHF band, PLLdigital frequency synthesis. The optimum distance is up to 150 meters. 2.Infrared frequency, the transmitter can be interchangeable, simple operation,advanced features. 3.A total of 200 frequency points are available, so you can use 100 set points per channel, so you don't have to worry about frequency interference. High sensitivity, meeting outdoor distance and meeting performance requirements. 4.Our product uses a top microphone box/core to match the top board for better vocal content reproduction. This means that the microphone system can be used by professionals or individuals. 5.Automatically search for free channels, automatically avoid interference channels. 6.If you want the good various performance, show, lectures, singing, it is your best choice.

Debra Audio TD-220 is true diversity dual microphone four receive and antenna, effectively overcome the frequency of dead ends, UHF band, PLL digital frequency synthesis. The Optimal distance arrived 850 Foot operation range. Infrared frequency, the transmitter can be interchangeable, simple operation, advanced features.200 frequency points so that you can use 100 set at the same time, so that you don't need worry the frequency interference. High sensitivity to meet the outdoor distance to meet the performance requirements. Our product use top microphone cartridge/core match the latest optimized circuit board, so that it can fully restore your voice. This microphones system that can be satisfied with most profession or person use. If you want the good various performance, show, lectures, singing, it is your best choice for you Debra Audio TD-220 wireless microphone system comes with 3-year warranty & supportive customer service.

Debra Audio D-240 4channel wireless microphone system.There series products adopt UHF frequency and use the international standard common frequency which can be used in all over the world. Due to the low frequency and many reasons, traditional wireless 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 week or the microphone is closured, the squelch circuit many suddenly opened which result the receiver send out a strong burst of noise. Do not change the frequency when using one set system.It ideal for church, small DJ KJ stage, birthday wedding or family party,conference, classrooms, small karaoke night etc.

Debra Audio D-240 4channel wireless microphone system.There series products adopt UHF frequency and use the international standard common frequency which can be used in all over the world. Due to the low frequency and many reasons, traditional wireless 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 week or the microphone is closured, the squelch circuit many suddenly opened which result the receiver send out a strong burst of noise. Do not change the frequency when using one set system.It ideal for church, small DJ KJ stage, birthday wedding or family party,conference, classrooms, small karaoke night etc.

Debra Audio D-240 4channel wireless microphone system.There series products adopt UHF frequency and use the international standard common frequency which can be used in all over the world. Due to the low frequency and many reasons, traditional wireless 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 week or the microphone is closured, the squelch circuit many suddenly opened which result the receiver send out a strong burst of noise. Do not change the frequency when using one set system.It ideal for church, small DJ KJ stage, birthday wedding or family party,conference, classrooms, small karaoke night etc.

Debra Audio D-440 4 channel wireless microphone system.There series products adopt UHF frequency and use the international standard common frequency which can be used in all over the world. Due to the low frequency and many reasons, traditional wireless any digital equipments. Squelch circuit usually analyzes 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 week or the microphone is closed, the squelch circuit many suddenly opened which result the receiver sending out a strong burst of noise. Do not change the frequency when using one set system.It ideal for church, small DJ KJ stage, birthday wedding or family party,conference, classrooms, small karaoke night etc.