Revolutionary 10mm Dynamic Driver IEM   The 7Hz Salnotes Zero is a revolutionary earphone to be fitted with a 10mm dynamic driver with metal composite diaphragm, utilizing pioneering technology exclusively developed by 7Hz. The metallic composite diaphragm used in this product is made of high quality materials, making it easier to resonate or vibrate along with sound waves. It was constructed with ease of use in mind as each part has been designed with precision accuracy so that they will not hinder audio transmission. Ergonomic Shape&Metal Housing 7Hz Salnotes Zero is housed in a environment-friendly plastic chassis with a stainless steel faceplate. High precision and precision measurements based on ergonomics were taken to help create an earphone that offers an excellent acoustic performance, as well as safety, comfort and durability. Detachable High Purity OFC Cable The earphones include a detachable cable with gold plated 0.78mm 2Pin connectors. The cable is made of 4 core high purity Oxygen Free Copper in parallel structure while each core is made of 19*0.08 wires+250D to maximally avoid signal loss and ensure a high fidelity transmission . N52 Magnet, Fine Tuning The fine tuning technique and using of a dynamic driver ensures accurate and efficient transmission of audio signals. You can enjoy a smooth and accurate sounds without any distortion. 7Hz Salnote ZERO Tuning 7Hz Salnote ZERO makes the ultimate audio experience available to you from the convenience of your mobile device, laptop or desktop computer. The Depth of ZERO By naming it ZERO, we intended to deliver our philosophy of life to every customer. Previously our team has brought Timeless and Eternal to the community, now it’s time for ZERO. ZERO means eternity and mortality without ultimateness. ZERO provides limitless imagination and allows boundless possibilities. Also ZERO is manufactured in more than one color. Three technicolored colors are adopted for this model to bring you a vibrant atmosphere and rejuvenate your music experience.