M214C, Headset for Cordless Phones, by Plantronics 

Multi-task at home while enjoying clear, noise-free conversations with your hands-free Plantronics M214C headset for cordless phones. This comfortable, affordable headset includes an inline microphone adjust switch that optimizes your voice volume, and convenient volume and mute controls to minimize annoying background noise. The M214C simply plugs into your existing cordless home phones and mobile phones that have 2.5mm ports.

Best Cordless Headset Product Features:

Adjustable headband provides a comfortable, secure fit

Convenient inline microphone adjust switch optimizes sound for cordless phones

One-touch inline volume and mute controls

Optimal voice clarity with noise canceling microphone

Also works with mobile phones that have a 2.5mm port