Cobra Electronics LI6500-2WXVP (7 Channels) Two Way Radio

I am filming the pilot for a reality show which entails the use of two way radios and upon advice from my producer I purchased two sets totaling four units. Two of them were dead on arrival and the others barely work. From prior experience with Cobra we thought we would get quality American made product but what we got is poorly made Chinese junk. Not only is the product cheesy but customer service at Cobra is extremely hostile. You can't get a straight answer and you can't get a refund.