Philips Fidelio Docking speaker DS7550, 2.0 channels, 10 W, 3.5 mm, Neodymium, 8 h, 2.3 kg Philips Fidelio Docking speaker DS7550. Audio output channels: 2.0 channels, RMS rated power: 10 W. Headphone connectivity: 3.5 mm. Magnet type: Neodymium. Battery life (max): 8 h. Weight: 2.3 kg