(1) Don't use the net head holding the microphone. Because all the words of the microphone have a certain directivity, if you hold the net cover part with your hand, it will change the directivity and frequency response of the microphone, and will also produce the effect of returning and screaming due to the aggregation effect of the palm. 

(2) Do not hold the antenna transmitting part of the microphone. Generally, the transmitter circuit and antenna are located in the lower part of the microphone (away from the end of the mi head). When the hand touches the antenna, most of the RF energy is lost because it cannot enter the air, reducing the use range of the wireless system, affecting the receiving effect, and normally holding the middle of the microphone. 

(3) The distance between the microphone and the mouth should be kept appropriately. When using the handheld wireless microphone, the distance between the microphone and the mouth is generally maintained at 5-250px, too close will produce close effect, too light sound, will destroy the sound quality; in the use of the microphone, to prevent the microphone from the mouth, as close to the mouth; to avoid the mouth on the microphone, avoid voice airflow, should move to both sides. 

(4) Avoid pointing the microphone directly to the speaker box. If the microphone is directly pointed to the speaker, for the whole system, formed a closed loop, will produce positive feedback (howling), which must be avoided. 

(5) Try to avoid holding the two wireless microphone transmitters together, so as to avoid intermodulation interference. 

"Listen to the good voice and gather positive energy!"Guangdong Wanchang Technology Industrial Co., Ltd. is a collection of product research and development, production, sales, engineering projects in one of the modern audio enterprise, its jazz dragon sound for 14 consecutive years won the top ten professional sound expansion system (national) brand title.Adhering to 18 years of industry experience to provide users with quality products and intimate service, the company was awarded the high-tech enterprise unit and municipal technology research and development center certificate by Guangdong Provincial Department of Science and Technology.Market-oriented and project-centered, the company's product business involves professional sound, lighting and stage design, educational equipment, intelligent broadcasting, square dance sound, home theater and other fields.