This EVO R Speaker is an innovative, easy-to-use device that transforms your mobile device into a powerful Bluetooth speaker. Speaker comes in four vibrant colors (blue, green, red, purple) and has colorful breathing light to bring you both visual and aural enjoyment. Speaker is compact with a built-in rechargeable battery that is good for 3 hours of continuous playtime. It connects to any mobile device or PC through the 3.5mm.