Product description: Remote Speaker Microphone for Two-way Radio Key specifications /special features: ·Easy carry and simple to use. ·Good quality ·Clear sound performance ·Comfortable holding ·With a 360-degree revolving stainless clip on the back. ·Solid, flexible, strong, and durable cable. ·Available for Icom, standard, Yaesu, Kenwood, Motorola, transceivers and others. Properties: Microphone: Sensitivity: -38dB± 2dB Impedance: 2.2K ohms Speaker: Sound pressure level: 83dB ±3dB Impedance: 32 ohms ± 15% Audio output: 2W