IFeng 3.5mm 1 Pin Acoustic Tube Earpiece Headset with PTT and Microphone for YAESU VERTEX Radios Walkie Talkie VX-132 VX150 VX-3R VX-5R The transparent tube connecting the ear bud makes you look like a secret service agent or a body guard and protects you from radiation. Microphone: Dimensions: 6*2.7mm Sensitivity: -38dB3dB Frequency: 1kHz Impedance: 2.2KOhm Speaker: Diameter: 15mm Impedance: 110Ohm Sensitivity: 106dB4dB Rated power: 0.5W Maximum power: 1W Package Include: 1 X Earpiece for YAESU/VERTEX 1Pin Radios Compatibility:YAESU / Vertex FT-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-5R