a great product that connects to all devices at once, which is rare, at first we think the volume may be low but after adjustment buttons on the top of the unit and the GPS (for example) he is strong enough or even too strong, micro headphones and camera mounting system that can in one minute apart and install it in another headset, it's easy, and very solid. I'll buy a second for the second headset, because I find this awesome system, that is exactly what I wanted, besides the duration of the batteries is important, no need to load all the time, better than systems I bought before and that cost a fortune, were often reluctant (with no connections or some gps phones too often recharge, not always on top reliability, all at the price of 2 new tires on the bike !!) it's perfect, it's cheap and good manufacturing seems solid, I adopt !! Swiss load thank you, I like this imoto. If one is looking for weak points can be the sound quality for music, because few bass, but this is really nitpicking given the price, and then bike to listen to music in the helmet n It is really not advisable, I just tried to test .so 5 stars no problem.