I bought a pair of helmets from TreeStuff. The one works very well. The other one I had to hold the box out to get connection to hear the speaker called treestuff they sent one out and that one doesnt do anything either paired it to my iphone nothing paired the first one that worked from the get go it works. I dont get it. Am I doing something wrong or did I get a bad batch ? Very frustrated right now. Treestuff was great so far called friday morning the replacement came today.