The SP0055 is the ideal companion for on-the-go: You can fasten this small and compact speaker with its loop for example to a backpack during a hike and enjoy your favorite music in high quality sound. Whether from a Bluetooth smartphone, tablet or computer, you can play everything wirelessly with best sound. In addition to that, you can also play music from a microSD card/USB flash drive or listen to the built-in FM radio. Particularly practical is the hands-free function, which enables you to take calls everywhere and at any time. It couldn't be easier or more convenient.- Ultra-compact and high performance wireless speaker- Play music from smartphone, tablet or laptop wirelessly- Rechargeable Li-Polymer battery for hours of continuous playtime- Speaker is covered with colored mesh fabric, making the speaker look stylish while ensuring it‘s premium sound quality- Able to play music from microSD card slot or USB flash drive- Built-in FM Radio- Support hands-free function, answer/reject phone calls without taking out the phone