Looks like a good project but that battery life is a killer. I definitely could not survive with just 3.5 hours, probably less, on a single charge. I just recently bought a pair of jaybird x3's and the battery life is over 6 hours, most of the time I get 8 hours of usage before having to charge them. They are a little on the expensive side of things but I would definitely recommend them. All of these totally wireless headphones have so many floors and I don't understand how people are still buying them. They look cool and all but are they functional, not really. I would opt for bluetooth earbuds instead, or even bluetooth headphones if that's your thing.
