u-touch interactive touch-screen panel overlay

u-touch interactive touch-screen panel overlay. With the popularization and widespread use of wireless microphones, how can they better play their superior role, the following issues should be paid attention to in the selection and operation of the use: When purchasing wireless microphones, try to choose the one with less power consumption and higher utilization For wireless microphones, we recommend the "STAR U50 Wireless Microphone", which has super squelch function and high signal-to-noise ratio. Use high precision quartz crystal to lock the frequency. Strong anti-interference ability, effectively suppress noise output. Wide frequency response range, ultra-low distortion. Perfect working status indication and power indication. When purchasing the battery of the wireless microphone transmitter, in order to ensure that the system does not appear signal distortion and frequency interference during normal use, an adequate battery must be used. It is best to use an alkaline 1.5V battery if conditions are available during the purchase. Be sure to develop the habit of taking out the power of the transmitter after each use. Otherwise, sometimes you will forget to turn off the shape of the transmitter because you did not remove the battery. This will cause the battery to run out of energy and cause the battery to leak and damage the transmitter Causing unnecessary losses. When purchasing, you should stagger the transmission frequency of the TV station to avoid interference. When purchasing multiple wireless microphone systems, you should also pay attention to the frequency of each system cannot be repeated to avoid mutual interference when the frequencies overlap. If it is a new site, high-density barbed wire or iron sheet is added to the top and surrounding of the building during construction to shield and isolate the external wireless signal interference.