Earhook converts from over-the-head to over-the-ear use. All models available with voice tube or noise-canceling microphone. Reduces background noise & incoming loud tones while enhancing call clarity. Compact, lightweight headset with superior acoustics & sound reception. Quick Disconnect ™ lets you leave your desk while the caller remains on the line. Adjustable clothing clip. Headset Type: Monaural; Headset Style: Convertible; Earpiece Type: Ear Cushions & Adjustable Earloop; Earpiece Material: Foam.