Name: USB Bluetooth Adapter 4.0Color: Transparent blackChip: Bluetooth 4.0 chipFunction: Extend BluetoothBluetooth version: 4.0Transmiion distance: 20mScope of application: Laptop / desktop / one machine(Win8 or higher system, plug and play, Win7/XP system need install CD drive to use)Package included: 1 pieceProduct description:Bluetooth 4.0 adapter is a new Bluetooth adapter product, with USB2.0 interface, to deal with data and audio data interaction between PC and various Bluetooth devices. Fully compliant with Bluetooth 4.0 technology specification, support 20m ultra long-distance transmiion, stable signal, dual mode, low power consumption, all technical performance is better than other current versions of Bluetooth technology.Features: Adopt Bluetooth 4.0 chip, which is in line with Bluetooth 4.0 technical specification and dual mode transmiion.More transmiion distance: 20m long transmiion distance (no barrier), strong signal. More stable transmiion rate: 3Mbps transmiion rate, providing high-speed file and audio data transmiion.Powerful and support for multiple application extensions (Microsoft OFFICE software). Ultra-low delay speed link, intelligent sleep wake-up energy saving, 24-bit CRC check to resist interference, adaptive frequency hopping to reduce crotalk. Fully backward compatible with Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0 specifications.USB2.0 interface is more versatile, ultra-mini body shape portable.