About Product:Bluetooth adapter "Bluetooth" (Bluetooth), which is a short-range wireless connectivity technology of the world wide, using the microwave near the same 2.4GHz free, free application for radio frequency band. This band to avoid interference caused by the numerous electronic devices, thus with the 1600 high-difficulty of frequency hopping and encryption security technology, transfer rates ranging from 432Kbps to 721Kbps. Widely proven in the Bluetooth specification version 1.1, about 1Mbps bandwidth, and also some versions up to 2Mbps.