Black Lenovo 500 Bluetooth in-ear headphones with built-in microphone for dual-device pairing with 10-hour playback: Original product Enhance Your Life With Bluetooth Earphones The Lenovo 500 Bluetooth In-ear Headphones are perfect for you if you like to keep the fun going. Use an in-line microphone that provides a rich audio experience and powerful in-ear speakers to liven up your life.