They consist of two parts, a signal transmitter and an earphone with a signal receiving and amplifying device (usually moving coil type). The transmitter is connected to the signal source, and the front stage or headphone amplifier can be connected in front of the transmitter to improve the sound quality and adjust the tone.
A wireless headset generally refers to a headset system that transmits signals in infrared light, and a cordless headset refers to a headset system that transmits signals using radio waves. Infrared headphones operate from a few KHz to a few MHz, the effective distance is about 10 meters, the headphones should be in the visible range; the radio headphones operate at VHF 130MHz-200 MHz, UHF 450 MHz -900MHz, most cordless headphones work in UHF It can transmit up to 100 meters and can bypass obstacles. Two or more pairs of wireless/cordless headphones may interfere with each other, so it is best to choose a variety of operating frequencies when selecting them. For cordless headphones, working on UHF may be less disturbing than on VHF. Both headphones have background noise, and higher-end models use noise-reduction techniques. Also note that the battery life of the wireless / cordless headset should not be less than 8 hours.
MAONO is an innovative designer and manufacturer of Lavalier, Podcasting, Wireless, Shotgun, Recording microphones and accessories for Smartphone, Camera and PC, etc.