The Sony MDR-E9LP Fashion Earbuds Stereo Headphones in black come with 2 pairs of earbuds, perfect for stereo sound. With a driver size of 40mm, these earbuds are suitable for live monitoring and broadcasting. Featuring Bluetooth wireless technology, in-line control, and active noise cancellation, they offer a comfortable and immersive listening experience. The earbuds also have replaceable ear tips, noise isolation, and a built-in microphone for added convenience. Compatible with 3.5mm jack connectivity, these Sony earbuds provide a stylish and reliable audio solution.