Hi, 滄海一粟. We are sorry you having this issue. Pls. 1. clear the cache of the earbuds app. 2. Uninstall & reinstall the earbuds app. 3. Reset the earphone by pressing the pairing button till it lights to red (make sure the earbuds are inside the casing but keep the lid open). Or contact our support here: https://360.tnycc.pro/w8eqtcr3