Stream all your favorite music wirelessly with this Mental Beats Portable Bluetooth speaker. Delivering impressive sound, this speaker features 4 built in speakers, a built-in microphone for hands-free calling, and rechargeable battery for easy portability. This unit also features a built in FM Scan radio along with an aux input so that you can connect via cable to your source device. Charge this speaker easily by connecting it to any USB power source. Battery play time is approx. 5-8 hours