CP0365B Features Powered via USB connector， no external power needed Plug-and-play capability， no driver needed Standard USB2.0 connector， convenient to use Suitable for PDAs， notebooks， laptop and desktop PCs Compact size to save space and convenient to carry General Specs Brand & Model HK-5002 Connector USB Voltage 5V OS Requirement PCs contains USB2.0/1.1 port and audio output port