ArticleNo/ P/N: PMLN8253A Radiotype: ION, MXP600, MXP660, R7 Series, R7 TIA4950 Series Replacement Dust Cover for RM730 & RM110 (10 Pack) The Replacement Dust Covers (Pack of 10) are designed for the Remote Speaker Microphones PMMN4148 and PMMN4131 Price request