X80 Black Speaker Fanny Pack Polyester Imported Comes equipped with two premium speakers and 6 watts of superior ear-blasting sound unrivaled by other portable speakers Connect your iPhone, iPod or other portable music device and play music from your fanny pack The adjustable strap fits waist sizes ranging from 28-inches to 40-inches around. USB power plug allows two power options, the AA battery pack (batteries included) or any USB power source such as a laptop Speaker unit detaches and can function separately