... Theater PC Karaoke PlayerBuilt (build in) PCI dual-function Bluetooth wireless adapterMain Features: Support for VCD, DVD, CDG, MP3, ... + Blu-ray burner+ DVD/CD burner) Built-in wireless network adapter integrated Bluetooth (WiFi 802.11b / g + Bluetooth v2 ... .0 EDR Maxspeed: 3Mbps, Class1)Optional external wireless network adapter integrated Bluetooth (WiFi 802.11b / g + Bluetooth v2.0 ...