Impedance: 30ohms Cord Length:1.2m MADE FC RONS Working power: 100mw Driver Unit: 14.2mm Frequency Response: 20Hz-20KHz Connector: Type-C BQZ Type-C Universal Built-in Mic With Answer Call End / Mute Button HD Voice Earphone Handfree For Type-C. Ultre-clear sound speaker utmost sensitive microphone. User-friendly adjustability & comfortable wearing on both right or left ear.