4-Port-USB-Hub mit Lautsprecher

4 port USB HUB with speaker --best gift for promotion OEM, ODM is available CE,FCC for the product Features : *Extension 4 usb interface, each supply up to 500mA * No external power supply, easy to use * No driver, plug and play, support hot swap * Support USB2.0 compatible USB1.0/1.1, speed up 12Mbps * System Support: Win95 osR2/98SE/Me/2000/XP, Linux2.4andMacos8.5 or higher * Up to 127 usb devices * Full use of a high-quality electronic devices, to ensure job security products *Warranty :1 year