The leaflet, written succinctly and too small Finding the right tyming to synchronize the headset at first, like clairvoyance. Can be cut every 5 minutes without signal, and you have to resynchronize. This poses a problem for the settings as you try to adjust a device you believe in service and that is ragent. Batteries, this is not a case, the better is the rechargeable support! Unable to find a serious info on the internet, that's all and nothing, not easy to choose, but it is general. It does not have a 5.1, but upgraded stereo with sound quality that follows, but once well set is nice, even good for a stereo for music, but it's just MW3. Value for money, I do not know the others, there is still a lack of objective information, and no way to realize it without listening. Sound settings for games, not easy to adjust, as it cuts out the games. The microphone, I have not yet managed to make it work. Once understood its operation (helmet) it just connect to PC via the mayor card, fiber optics, and the same record problem, still not managed to connect the microphone, for lack of comprehensible information. Objective scope, the adjoining rooms, no more than 6 meters. after the signal is not good. The service, to advise non-existent! The quality seems correct, it weighs on the ears a bit, but relatively comfortable. Pa has successfully connect to the wifi box, why? it is indicate that the positive is precisely the possibility of having two different signals for reception quality! This helmet would win and it certainly did not accompany the only one to be seen seriously its technical manuals. I do a pose, to follow, I expected a handshake seller, help, or good advice for an exchange model without all these problems. With the back, that is, without the microphone, a good little helmet. On the TV via fiber and usb, and settings, nice! It heats just the ears, but of good quality, and pleasant to the touch. The sound, he does what he bit, but after adjustment is correct. I begin to me fast, but do not know the other model. I give a star, and looks afterwards.