Radius HP-NHR21
amazon Radius HP-NHR21 reviews Specifications: Driver: Dynamic diameter 13mm. Sensitivity: 103dB / mV. Impedance: 17Ω ± 15% Frequency response: 5Hz-40000Hz. Wire: 1.2m long Build: The HP-NHR21 boxer is quite similar to the NHR11, with the High Res logo on the box, below the Radius logo. The housing of the NHR21 is quite similar to the […]