Taunusstein, Germany - Motorola has released loudspeakers that can turn mobile phones into portable stereos. The collapsible Stereobox EQ3 costs 39.99 euros and can be connected to a mobile phone via a wire. The EQ5 and EQ7 models work with Bluetooth, allowing them to wirelessly receive music transmitted from a mobile. They cost 89.99 euros and 149.99 euros each. (dpa)