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.Professionnelle Compatibility: Select the compatibility option that best fits the use you intend to make your call casque.Centre 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 secondremaining free ear to hear the sounds ambiants.Polyvalent
Headphones Features
Headphone: One Driver size: 42 mm Frequency response: 300 Hz - 3.4 kHz Impedance: 300 ohm
Microphone Features
Frequency response: 300 - 3400 Hz
Other Features
Volume Control: No On / off switch included: No Cable length: 1.01 m