Creative Labs ZiiSound D5x. System type: 2.0 system, Speaker placement: Portable. Connectivity technology: Wireless, Wireless technology: Bluetooth, Docking compatibility: iPhone, iPod. Width: 425 mm, Depth: 100 mm, Height: 103 mm. Compatible operating systems: Windows XP, Vista, 7. Type: Portable speakers, Audio output channels: 2.0, Power source type: Battery