NEW OEM Motorola Radio Shure Dynamic Mic Microphone Part Speaker # 59-83272g01 this kit may be for P110 or Visar. I am not sure which other ones. I think the II series This is one you cant find anymore. They do not make them like they used to!! This is awesome. This knob has never been used and sitting on shelf for along time NEW.... Will work or money back. FREE USA SHIP ** Please check out my other radio/communication equipment auctions. We bought off a business that was auctioning off all their stuff that they accumulated over the last 40 Years!!! NEW OEM Motorola Radio Shure Dynamic Mic Microphone Part Speaker # 59-83272g01 this kit may be for P110 or Visar. I am not sure which other ones. I think the II series This is one you cant find anymore. They do not make them like they used to!! This is awesome. This knob has never been used and sitting on shelf for along time NEW.... Will work or money back. FREE USA SHIP ** Please check out my other radio/communication equipment auctions. We bought off a business that was auctioning off all their stuff that they accumulated over the last 40 Years!!!