Enhance the Quality of Your Music with the Green Lion Echo Stereo Earphones. Simple-to-use control buttons and an integrated microphone make conversation with these earbuds effortless. Rich, immersive sound quality is ensured by their wide frequency range of 20Hz to 20kHz, horn resistance of 22±10%, and sensitivity of 95dB ± 4dB, all designed for clarity. Features Control Buttons Inbuilt Mic Horn Resistance: 22± 10% Frequency Range: 20Hz ~ 20KHz Sensitivity: 95dB ± 4dB Earphone Cable Length: 1 Meter Interface Type: Lightning Interface SKU: GNMFIECHEPBK | GNMFIECHEPWH EAN: 6935100180854 | 6935100180861