Guide to Wireless Headphones

Wireless headphones are transducers designed without the inconvenience of wires, providing more flexibility and freedom of movement to the user and letting him privately listen to music or watch movies. They use advanced technology such as Infrared or radio frequency to receive audio signals from the sound source, making them more expensive than standard wired headphones. However, despite their hi-tech features, they usually have a limited transmission range that greatly affects their overall sound quality.

Radio frequency (RF) wireless headphones

Radio frequency wireless headphones receive the audio signals sent by RF transmitters through a particular radio frequency wavelength.  They have to maintain a certain distance from the base unit, and can be susceptible to radio interferences.

Infrared (IR) wireless headphones

Infrared wireless headphones receive audio signals directly sent by IR transmitters mounted on the headphones' direct line of sight. They have a more limited range than RF wireless headphones. Users can only move a few meters from the computer, television, or MP3 player. However, unlike RF headphones, they are rarely susceptible to radio interferences.

Sound technology. For improved sound quality, choose wireless headphones made with Dolby Digital sound technology. They are more expensive than the average wireless units, however.

On-board volume control. Look for wireless headphones with an on-board volume control that allows you to set and adjust the volume level from the headphone unit itself rather than on the base unit.

Batteries. For convenience and practicality, look for wireless headphones that can be used with rechargeable batteries.