With this super mini cute speaker ,you will say good bye to low vioce while listen to mucical ,watch moive and playing games * Superb sound effect,double speaker offers high quality surround sound * Build-in battery,no need for extra power supply.1 hr charging time ,3-4 hrs working time * Made with gel,super soft and convenient.Just add it on your device easily * 3.5 mm audio adapter,perfect for iPad 1 2 3 4 mini,Samsung Galaxy Note/Tab ,Google Nexus,Kindle and all kind of smart phone