Icom Extension Cable Command Mic II 20ft New Condition. extension cable for HM-127 (for added distance ONLY). Specifications for Icom Extension Cable Command Mic II 20ft: Manufacturer: Icom Length: 20 ft Color: Black Quantity: 1 Features of Icom Extension Cable Command Mic II 20ft: Command Mic II extension cable MFG# OPC999 20 ft extension cable for HM-127 (for added distance ONLY). Included Accessories: Command Mic II extension cable Documentation Package Contents: Icom Extension Cable Command Mic II 20ft Icom OPC999: Extension Cable Command Mic II 20ft New Condition