Very mini design style, fits both ears, very light, and securely fits the earhooks, suitable for long-term wearing without discomfort to the ears 8D surround sound, 5.0 binaural chip, large capacity, true wireless bluetooth headset, using bluetooth 5.0 technology, you can easily pair and connect with smart phones, free of cable constraints. Two earphones can be connected to a mobile phone at the same time, or you can use two earphones for each earphone separately. You can switch freely between the left and right earbuds without any additional pairing steps. Air conduction Bluetooth headset, lightweight design brings you an excellent exercise experience, whether in the gym or outdoors, suitable for running, cycling and other sports use Listening to music without blocking your ears allows you to understand the surrounding situation while listening to music.