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 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 ear remains free to hear the sounds ambiants.Arceau
Headphones Features
Headphone: One Driver size: 51 mm Frequency response: 300 Hz - 3.4 kHz Impedance: 300 ohm Sensitivity: 112 dB
Microphone Features
Frequency response: 100 - 4500 Hz Impedance: 2000 Ohm
Other Features
Volume Control: No On / off switch included: No Cable length: 1.01 m