1More TWS Earphones are wireless earbuds targeted to younger users. The titanium diaphragm dynamic driver and ACC high-quality Bluetooth transmission technology ensure superb-quality sound. Specially designed O-ring style ear support ensures that the buds fit comfortably in various sizes of ears. There are no buttons on the earphone itself. All functions can be controlled by a self-developed mobile app. Many music modes have been preset to fit different user needs. "Keep it simple and keep it cool" was the design motto for these 'must have' and very affordable earphones.