Feature��1. Noise isolating hi-definition in-ear earphone design. 2. It is super comfortable and with soft in-ear cushion design3. It will greater isolate from exterior ambient noise. 4. With clear sound， excellent high， middle notes and deep bass. 5. Noodle flat earphone cable design��which don't worry cable windingProduct Specification��Model: AWEI ES-600M Drive: 8mm Sensitivity: 90dB �� 3dB Impedance: 16�� ��15% Frequency response: 20Hz~20KHz Cord: 1.20M noodle flatAudio plug ��3.5 mm