The Brand New Wireless Earbud Headphones by Lanxun feature a 40mm driver size and come in a sleek black color. Designed for live monitoring, these earbuds are suitable for personal use and offer a comfortable in-ear form factor. With Bluetooth wireless technology and a built-in charger, these earbuds are convenient and easy to use. Manufactured in the 2020s, these earbuds are perfect for those looking for a reliable and high-quality audio experience.