MAIN FEATURES
1. Using VHF 210-270MHz band to avert interfering frequency.
2. Using multilevel high frequency and mid frequency narrow band filter,so as to dispel any possible interfering signals.
3. Using low tension design. When the battery low to 3V,it is still working.
4. Using AL C design, don’t worry the great volume so that distortion.
5. There is a volt indicating circuits in the microphone. It can tell you if it’s necessary to change the battery.
6. All use quartz crystal oscillating circuits,so the frequency is very steady.
7. With audio compressing expanding technology, the machine can lower noises and increase the dynamic range,it can also lower reecho.