The Panasonic RP-HJX20-K Drops 360° Luxe In-Ear Headphones in black come in a pack of 10 units. These headphones are designed with a sleek in-ear form factor, featuring a comfortable double earpiece for immersive sound quality. With a 3.5mm jack connectivity, these earbuds provide a convenient and easy way to enjoy your favorite music on the go. The high-quality design and construction from Panasonic make these headphones a reliable choice for portable audio enthusiasts.