Bluetooth earphones LED display oval case Compatibility with all smartphones with bluetooth. Features: Rechargeable battery capacity of headphones 30mAh and case 300mAh Bluetooth 5.0; range 10-15m; Automatic connection/disconnection when putting on or taking out the earphones from the case; touch button, noise reduction, easy and comfortable to wear, quality sound, voice control, battery life about 3-4h. The earphones have a safety in the overload, short-circuit, temperature…. Thanks to these headphones, the external noise is reduced and thus have a quality sound. Take advantage of these headphones to practice your physical activity in complete freedom while listening to your music. You can change songs, reject a call, decrease or lower the volume, answer the phone, play/pause your music using the touch button on each of the headphones.