Tronfy Mini S530 Smallest Bluetooth Earbud Invisible Lightweight Wireless Earphone Headset Headphone With Mic Support Stream Music Hands-free Call For Apple iPhone Most Smart Phone The smallest Bluetooth earbud in the world, designed with Ergonomic appearance and invisible size for discreet listening to music without missing important things during work. Included an exquisite case for easy carry and put away without missing it somewhere; Light weight Bluetooth earbuds for Compact Portability Voice prompt Sounds like breeze, to avoid annoying sound blaster when powering on/off; Clear Sound Without Volume Control Buttons in this earbuds, Support Audio, Video, Music A2DP, enable you to enjoy clear and natural sound when calling; Elaborate Manual and humanized design for you. Up to 4 hours of continuous talk time, 3.5 hours of music time, display headset's battery level on iOS. Hassle-free Services. Notice : The bluetooth is only for one ear. Not a pair. Due to the difference of people's ear, this earphone maybe not fits everyone. If the one you get is not perfect for you, please let us know. We will find a best way to help you.