The Plantronics H171N DuoPro Headset is a convertible Over-the-Head & Over-the-Ear - Noise-canceling headset. This headset requires and amplifier.
The Plantronics H171N Features:
Convertible - Headband and Earloop included
Anti-twist boom ensures perfect microphone placement
Innovative double T-pad headband for stability and comfort
Voice-optimized speaker sound
Quick Disconnect feature for added freedom
2 Year Warranty