The Andrea NC-181 is a replacement for the Andrea NC-91 which has been discontinued.
Andrea Noise Canceling Microphone Technology
• Pro-Flex Wire Microphone Boom
• High Fidelity Monaural PC Headset
With Noise Canceling Microphone
Includes: Andrea's Noise Cancellation Microphone Technology; Pro-flex wire microphone boom for accurate microphone placement; Windsock for minimal breath popping; 40mm speaker with CD quality deep base sound and large comfortable ear cushion; Stainless steel adjustable headband; Reversible for left or right side usage; Folds flat for storage; Extra long 8 foot shielded cable; durable construction.