He is 6 and also on swim team. It's funny because all i want to do is surf and all he wants to do is wakeboard so naturally the ballasts never get filled and i never get to surf. But i love it. The bbtalkin units have really made a huge difference and i recommend them. He used to make up all sorts of hand signals that i had no clue what he was trying to tell me. They are expensive but all things considered worth every penny.