universal wireless one-and-two microphone with receiver fm meeting family ktv performance outdoor general

1. with a key automatic radar frequency search function, a key lock button function 2. use 30 electronic volume control, built-in 4 kinds of screen color choices, high and low power 3. clear and bright sound quality, ideal distance of more than 300 meters, 500 meters in open area, 4.250 optional frequency points, universal hand, strong anti-interference ability 5. launch lcd display channel and battery power 6. suitable for large and small stage performances, meeting halls, ktv rooms, etc. , frequency range: 738-790.8 mhz (641-690.8 m...