Hama Boom Clock, 1.0 channels, 7 W, 100 - 15000 Hz, 3.5 mm, iPhone, LCD Hama Boom Clock. Audio output channels: 1.0 channels, RMS rated power: 7 W, Frequency range: 100 - 15000 Hz. Headphone connectivity: 3.5 mm. Apple docking compatibility: iPhone. Display: LCD. Product colour: Black, Silver