Features: 1. All of our items are brand new.2. A remote microphone with push to talk button you can clip anywhere.3. The transparent tube connecting the ear bud makes you look like a secret service agent or a body guard and protects you from radiation.4. The ear bud / speaker fits snugly to ear， which keeps your conversations private. 5. Length of the cable (Plug to PTT): 98cm.6. Length of the cable (PTT to Speaker):75cm.7. Color: Black.Microphone:1. Dimensions: Ø6*2.7mm2. Sensitivity: -38dB±3dB3. Frequency: 1kHz4. Impedance: 2.2KOhmSpeaker:1. Diameter: Ø15mm2. Impedance: 110Ohm3. Sensitivity: 106dB±4dB4. Rated power: 0.5W5. Maximum power: 1WCompatibility:SeriesModelYAESU / VertexFT-10R， FT-40R， FT-50R， FT-60R， FT-250R， VX-10， VX-110， VX-130， VX-131， VX-132， VX150， VX-160， VX-168， VX-180， VX-210， VX-210A， VX-300， VX-350， VX-354， VX-400， VX-410， VX-420， VXF-1， VXT-10， VXT-20， VX-1R， VX-2R， VX-3R， VX-5RPackage Include:1 X Earpiece for YAESU/VERTEX 1Pin Radios