1. High quality and durable TPEbulletproof wire tensile and folding resistant 2. 3.5mm L-type golden pin compatible with 99% mobile phones of the market 3. 10mm high-fidelity dynamic circle unit low frequency and pen sound field 4. Multiayer graphene vibrating diaphragm less distortion and more original sound 5. Comfortable 45 degree grade in-ear wearing effectively lower external noise
