Product Features: 100% BRAND NEW & NEVER USED. Transparent flexible acoustic tube. Hidden microphone inside PTT switch. Soft plastic earbud fits snugly to ear. One spare plastic earbud included. Compatible Uniden Models: PMR845/PMR885 GMR1038-2CK, GMR1048-2CK, GMR1058-2CK, GMR1088-2CK, GMR1438-2CK, GMR1448-2CK, GMR1558-2CK, GMR1588-2CK, GMR1595-2CK, GMR1636-2CK, GMR1838-2CK, GMR2059-2CK, GMR2089-2CK, GMR2099-2CK, GMR2240-2CK, GMR2238-2CK, GMR2638-2CK, GMR2838-2CK, GMR2889-2CK, GMR2872-2CK, GMR2875-2CK, GMR3040-2CK, GMR3040-2CKHS, GMR3689-2CK, GMR3699-2CK, GMR3799-2CK, GMR3799-2CKHS GMR4040-2CKHS, GMR4099-2CKHS, GMR5089-2CKHS, GMR5099-2CKHS, GMRS480, GMRS480-2, GMRS520, GMRS520-2, GMRS522-2, GMRS720, GMRS720-2, GMRS750-2CK, FRS1200, FRS1400, FRS1400-2, FRS300, FRS300-2, FRS400, FRS400-2, FRS400-2BK, FRS400G, FRS400G-2, FRS420, FRS420-2, FRS440, FRS440-2, FRS500-2, FRS550W TR620, TR620-2, TR622-2 More models, please feel free to contact us for more details.