Connection: As the name implies, wireless headphones work wireless. Just connect a transmitter (base) to the audio system to operate the headphones, which are integrated receiver and amplifier. Wireless systems use either infrared transmission (IR) or radio frequency (RF). Infrared systems, which have a relatively narrow (10 meters) require a direct view of the base for good reception. Wireless technology is radio frequency up to 100 meters from the base, even through murs.Câble Use: A helmet is rather general public for personal or household use, while a headset is primarily intended for professional use in entreprise.Grand Public Compatibility: Select the compatibility option that best fits the use you plan to do your casque.Ordinateurs Mobile / Cellular Gambling Format: The earbuds are worn in the ear. Headband headphones, which are the most common models, are worn on the head. The ear clips hanging from the back of the ear. The helmets of the type "neck" consisting of earphones and a headband that is worn on the neck for optimal comfort. There are also headphones that do a headset, the second earremains free to hear the sounds ambiants.Nuque