i had something like that when i got one and so did my dad, i ride with him a lot and although they come somewhat charged, they didn't work right until you completely drain the battery (turn up the sensitivity and set it next to a radio or somethin for a couple hours till its dead) then charge for a total of like 14 hours.
why this works i do not know, but it fixed the problem for us, we were getting a lot of static, and loud noises. Its in the manual that they say to do this, and i'm sure a lot of people pass it over, as i did myself. also, try messin around with the channels you are on, some definitely work better then others.
if all else fails take it back and get a different one, could jsut be a faulty unit, good luck though
why this works i do not know, but it fixed the problem for us, we were getting a lot of static, and loud noises. Its in the manual that they say to do this, and i'm sure a lot of people pass it over, as i did myself. also, try messin around with the channels you are on, some definitely work better then others.
if all else fails take it back and get a different one, could jsut be a faulty unit, good luck though