Material: ABS+Copper wire Size: 5.9*2*1.8cm / 2.30"*0.78"*0.70" Color: Black Suitable for various audio devices, able to effectively reduce noise interference and improve sound performance, making music listening more comfortable and enjoyable. Highly practical, suitable for different places and occasions such as recording studios, audiovisual events, conference presentations, live interviews, etc. Made with high-quality materials and craftsmanship, providing excellent durability and stability, with a long lifespan, easy maintenance, and great value for money. Simple in structure, compact in size, easy to carry and store, can be used anytime, anywhere, convenient and practical. The product is safe and reliable, passing multiple international certifications and testing, complying with various safety standards and environmental requirements, ensuring worry-free purchasing and use. Package includes: 1 piece.