Cresyn C555S AXIS Black Hi-fi Headphones Built-in microphone For Smart Phone

GENUINE and ORIGINAL Packing same as Pictures. Provide Tracking Number For High Fidelity Sound and Harmoniously Balanced Audio Enhanced bass and super wide frequency range gives you the perfect combination for the perfect sound Using the latest driver units for better sound Type Open air, Dynamic Driver Units Ø 40 mm Frequency Range 10 ~ 21,000 Hz Impedance 40 Ω Sensitivity 110 dB/mW Max Power In 500 mW Cord Length 1.2 m (3.9 ft)