USB2.0 specification, backward compatible with USB1.1/1.2 USB bus powered, no power supply is built-in LED work light indication Slim extremely light, built-in antenna, no USB connection, use, easy to carry Frequency :2.400-2 .4835 Ghz
- Interface : USB 2.0 / USB 1.1
- Convert non Bluetooth PC to Bluetooth enabled.
- Input Power: DC 5V (USB Power).
- Data rate : up to 3Mbps.