JVC XS-SR3E, 2.0 channels, 5 W, Black, Neodymium, 4 cm, 550 g JVC XS-SR3E. Audio output channels: 2.0 channels, RMS rated power: 5 W. Product colour: Black, Magnet type: Neodymium, Driver unit: 4 cm. Weight: 550 g. Compatible products: iPod, Speaker power: 2.5 W, Dimensions (WxDxH): 390 x 136 x 103 mm