Technology just keeps shrinking. Panasonic has created what they say is the world’s smallest micro-speaker. Their previous record holder was 2.5 mm, and at a mere 1.5 mm thickness and a size of 2 x 1 cm, they claim that the PED (Panasonic Electronic Device) loses no reduction of sound quality since its diaphragm is inserted on the top and bottom of its magnet, rather than making the magnet smaller. You will be able find them in cell phones and other portable devices in May 2007.