Generic CSR8510 USB bluetooth 4.0 V4.0 bluetooth adapter dongle 8 8.1 Compatible.

Descriptions:

The Bluetooth USB adapter adds bluetooth connectivity to you PC enabling wireless.
Communication with a wide variety of bluetooth devices.
The adapter drastically smaller thanother USB adaptersa and can be left in the USB port of your computer.

Features:
Bluetooth V4.0+HS， Class 2 level， USB V2.0
Ultra-low power consumption/dual-mode bluetooth
Maximum asynchronous transfer rate of 24Mbps
2.4Ghz-2.48Ghz ISM band
Ultra portable-tiny enough to stay with yuor laptop
weight:30G

Specification:
Audio heasets and headphones
Human interface devices such as mous， keyboad game controller moble phone， PADS
Media players， Digital cameras，printers，TV Box
Pc notebook， netbooks

Package include
1X V4.0 USB Super Mini Wireless Bluetooth