Product features:

1. Portable and wireless 

2. PLL synthesized design , with high frequency stability 

3. Digital mute- locked technolgy , no any interference.

4. Unique anti- interference circuit , avoid the interference from other frequencies automatically

5. 99 IDs allows 99 groups to operate simultaneously at the same place .

6. One transmitter can carry any number of receivers 

7. Bulit-in rechargeable Lithium Battery , use 15 hours at least .

8. LCD display ,easy to operate , Adjust volume 

9. Over 60m communicating distances