Quickcell Wireless Bluetooth Sound Cube Portable Speaker, Red in Color, 3 Watts of output, play for up to 4 hours on a single charge, rubberized shell, built-in microphone to accommodate hands-free calling. Compatible with Bluetooth devices 3 watts of output power Small size makes it perfect for travel Rubberized-shell gives the unit extra protection Built-in microphone allows for hands-free call management Supports voice commands