Business single ear headband assembly to be used together with the TT3 boom module (sold separately) to make a complete monaural headset assembly. Wideband enabled Noise-cancelling microphone Ratchet stop boom arm, with 220° rotation Larger 50mm diameter, high comfort, background noise reducing ear cushion Adjustable headband with numbered setting Super comfort top head cushions Plantronics compatible quick disconnect Designed & engineered in the UK Accessories included: Headset storage bag User Guide Clothing clip