Radius HP-NHR21 Earphones: Hi-Res Compatible Ne VOLT Series Deep Bass Model HP-NHR21 (1. Single Item, Red)

Input: 5mW Type: In-ear, Stereo/Mono: Stereo, Structure: Closed, Noise canceling: Not supported Surround: Not supported, Wireless: Not supported, Interface: Miniplug Frequency range (L): 5Hz, Frequency range (H): 40000Hz