Responsiveness and efficiency for this impressive order placed (MELICONI headphones HP 300), the 07.02.13 and the 08.02.13 delivered: all in a well-protected packaging. Sue that no complaints. However careful not to confuse speed with haste: Indeed I have no manual: he did not come with the helmet. There simply was descriptive of all the helmet on the box! (A bit short!) So I do not see anywhere on this set (helmet + support) or put the batteries? If other customers have ordered and used this headset MELICONI HP 300 Peuvent'ils information? Thank you in advance