Headsets can come in single-earpiece and double-earpiece designs. Single-earpiece headsets are known as monaural headsets. However, double-earpiece headsets may be stereo type (two channels of audio signal, one for each earpiece) or the same audio channel for both ear-pieces. Professional users may choose to wear monaural headsets because they free up one ear, so they can be more conscious of their work surroundings. Telephone headsets are monaural, even for double-earpiece designs, because telephone offers only single-channel input and output. For computer or other audio applications, where the sources offer two-channel output, stereo headsets are the norm. Telephone headsets generally use 150-ohm loudspeakers with a narrower frequency range.[2] Stereo computer headsets, on the other hand, use 32-ohm speakers with a broader frequency range. |