Neat and compact design for your Cobra microTalk radios, keep your communications smooth and clear during group outdoor activities such as hiking, camping, jogging, running, hunting, camping, fishing or work-related projects, and also good for business use such as retail, F&B, hospitality, event management, warehouses and offices | Made of durable materials: PU cable, metal 2.5mm single pin audio plug, 2 metal collar clips, soft silicone air tube and earbud | 2 lapel clips allow you to fix the hand free microphone on the position you need, Lapel microphone inside PTT switch block | What's in package: 1 x earpiece, 1 x spare rubber eartip | Replacement for most Cobra walike talkie with 2.5mm 1 pin jack: ACXT145, ACXT645, CX112, CX190, CX1035R FLT, CXT135, CXT145, CXT195, CXT345, CXT385, CXT390, CXT390S, CXT395, CXT531, CXT545, CXT645, CXT565, CXY800, CXY900, PX500, PX655, PX880, RX385, RX680, RX685, etc.