Features: 1. Sound quality, with abundant high-frequency energy, while the polyurethane and cavity unit structure can generate powerful and rich bass, creating astonishing . 2. The Radio equipment shell is of high-transparency , making it of the lightest HiFi Radio equipments, ensuring extremely comfortable wearing. 3. After testing various different cables, this cable combined with the diaphragm can bring the best balanced sound quality, helping to produce warm and rich sounds as well as excellent . 4. Equipped with 100*0.08 + 250D silver-plated detachable cables, it has wide compatibility and can be used with cables, thus maximizing the potential of the Radio equipment. 5. Each pair of Radio equipments comes with 6 pairs of different sizes of ear tips and a hard portable case. It includes two different types of ear tips. is - with small holes, which can bring bass; the other is the bowl-, using technology, with a larger , which can bring more sounds. Specifications: Sensitivity: 113.50dB 1kHz Impedance: 19Ω at 1kHz + 20% Frequency: 20Hz - 20kHz Wire : 100*0.08 + 250D silver-plated wire Wire length: 1.2m ± 5% Package Includes: Radio equipment * 1 pair Earplugs * 6 pairs Cable * 1 Storage bag * 1 note: The wire products may have error of 1-2 centimeters due to manual measurement. Please confirm there are issues before placing the order.