Wireless portable speaker Rolsen RBM-611BT has incredible sound quality in a small devise. It provides many hours of wireless play. Let your smart phones, tablets and any other Bluetooth-enabled device jam, with Rolsen RBM-611BT. To pair the speaker to a handheld device, simply enable the device's Bluetooth functionality and enter the code provided. The speaker also comes with line-in capability, which allows you to connect your non-Bluetooth-enabled devices directly to the speaker. A USB to micro-USB cord (included) makes it easy to recharge the battery. Simply connect the USB to your computer or wall adapter. The device is available in blue and black colors. Enjoy sweet sound in a sleek, portable design!