Philips Speaker Dock, 2.0 channels, 6 W, 3 Ω, 100 - 18000 Hz, White, AAA, LR03 Philips Speaker Dock. Audio output channels: 2.0 channels, RMS rated power: 6 W, Impedance: 3 Ω. Product colour: White. Battery type: AAA, LR03, Battery life (max): 10 h. Package width: 115 mm, Package height: 225 mm. Master (outer) case width: 282 mm, Master (outer) case length: 752 mm, Master (outer) case height: 263 mm