Wireless earphones use radio frequency instead of wires to transmit sound signals from audio sources like CD and MP3 players to the transductors or inductor pads in the earphones. They are small enough to be concealed in the ears, making them ideal for security, military, and surveillance purposes. They are available in radio frequency and inductive types.
Expert’s advice: Avoid sharing your wireless earphones to prevent the transmission of bacteria and dirt that can cause ear infection. Follow your manufacturer’s cleaning instructions on how to keep your wireless earphones sanitized.
Kinds of Wireless Earphones include the following:
Radio frequency wireless earphones
Radio frequency wireless earphones operate in the 900 megahertz radio frequency. Some models use transductors to convert audio signals into magnetic fields. They have a high sensitivity rating of up to 109 decibels and a 24-ohm impedance. They have a frequency range of 400 Hz to 7,000 Hz. They are powered by batteries.
Radio frequency wireless earphones can receive two-way radio transmissions.
Inductive wireless earphones
Inductive wireless earphones are worn in each ear canal. They are almost invisible as they come in skin tone colors. They use inductor pads to transmit the electromagnetic signals to the earphones.
Inductive wireless earphones have a sensitivity rating of up to 85 decibels. They can protect the ears from extreme sound levels.
