Bonsoir This headset works well inside as if we branch exterieur.Problemes helmet over his on tele.Il must know + no manual commissioning stage worthy of the nom.Pour has lost sound tv scart adapter audio outputs and 3.5mm socket to connect the 3.5 mm jack evil coming from the transmitter base of the helmet! final Beau equipment reliability dira.Il the future seems to me that lengthens delivery periods in practice? I put 4 stars for the very right price