Evolveo sportlife qh are wireless earphones designed to bring you a lot of fun and happiness. You can use them to listen to music, make and receive calls, and even redial the last number. The earphones have a built-in microphone, so you can use them for hands-free calling. They also have volume controls, so you can adjust the volume to your liking. The earphones are rechargeable, so you don't have to worry about buying batteries. They come with a microUSB cable that you can use to charge them.