ABS and metal - Built in li-on recharable battery. Retractable audio cable stores inside speaker includes retractable USB charger cable. Play music and charge at the same time. Dual speakers are compatible with iPhone, iPod and Blackberry, mp3/mp4 players, laptops or anything with a 3.5mm jack. Dual pop up, compact speakers for amazing sound quality. Dual pop up, compact speakers for amazing sound quality. Dual pop up, compact speakers for amazing sound quality. Just the right size to keep on your desk, counter or to use for travel. Individually boxed/Instructions included.
