Check the listing for details. 2 ea. Original David Clark Mic Muff / Microphone Protector M-4 p/n 40062G-01. Condition: New. Listed at 17.99 USD. 2 each of genuine DAVID CLARK M-4 mic protectors. Part no. 40062G-01 Improves communications by reducing wind and ambient cockpit noise while transmitting. Check the Model of your microphone for correct fitment. 622FREE DOMESTIC SHIPPING with tracking numberFor International Shipping* we use eBay's Global Shipping Program (Courier Service) for safe, fast and secured worldwide shipping. *International Shipping is the cost of shipping the item to your destination country. Please, be advise this cost does not include any import duties or fees your country's Customs might impose on the importation of this item. We, have no control on the import duties or fees or the amount.Thanks for landing @ World Pilot Supplies, an Authorized David Clark Dealer