Our Bluetooth enabled ENO Echo portable speaker not only weighs next to nothing and fits conveniently in any pocket, purse or festival pack, but its ENO hammock-specific design and built-in hanging hook angles the speaker for an optimized listening experience. Bright, colorful, and packing a huge audio punch for such a little package, the rechargeable (Echo)- that comes with an included micro USB cable - will inject energy into any adventure.