The American DJ Bluetooth C/Microphone Bk Grip Neckband Earbuds are high-quality in-ear headphones designed for wireless use with smartphones and tablets. They offer a comfortable fit and are ideal for music lovers as well as for making calls. With a wireless range of up to 10 meters, they allow for flexible use, while Bluetooth technology ensures easy connectivity to various devices. The headphones come with a built-in microphone that enables clear voice transmission. With a battery life of up to 8 hours, you can enjoy music or make calls for extended periods without needing to recharge the headphones. The closed design provides effective noise isolation, allowing you to enjoy your audio in peace. - Wireless transmission technology with Bluetooth 4.1 - Integrated microphone for calls and voice control - Battery life of up to 8 hours - Maximum range of 10 meters - Compatible with Windows operating systems.