Add to Cart Quick view Collins SM- 280 Desk Microphone for the KWM-380 & HF-380 Transceivers, in Beautiful Collector quality Condition Works Great! Collins MSRP: Now: $649.99 Was: This Rockwell Collins SM- 280 Desk Microphone for the KWM-380 & HF-380 Transceivers, is in Beautiful Collector Quality Condition, and Works Great with Excellent audio ! It has the factory Mil Spec KINGS .206 Microphone connector... MSRP: Now: $649.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $649.99 Was: Subtotal: Add to Cart