USB Bluetooth 5.1 Mini Adapter: Applies the latest Bluetooth 5.1 adapter, Bluetooth low energy. The anti-interference ability has been increased. New technologies have been adopted to reduce the loss of transmission efficiency caused by interference in the 2.4 GHz band. The built-in RTL8761B chip gives high sensitivity, fast transmission and stable connection with devices. Low Energy Consumption, Stable Reception and Wide Compatibility.

Connect to Bluetooth-Enabled Devices: Makes Non-Bluetooth PC and Laptops Bluetooth-capable. Turning your PC Bluetooth enabled and could transmit file to your phone or Bluetooth Printer. And you also can send the file on your phone to the PC.

Multi Device Expansion: Fast and further working distance than Bluetooth 4.0 Supports Bluetooth speakers, headphones, headsets, keyboards, mice, Mobile Phone, Laptop and more. Can work with Bluetooth printer and stereo headphone.

20M Unobstructed Range: With a unobstructed transmission distance of up to 20m in open space. It offers fast, stable and interference-resistant connection. (Please note: Bluetooth is also particularly vulnerable to other wireless interference. For example, wifi signal, wireless mouse, and Bluetooth are the same frequency, etc.)

Drive Needed: Driver needed below Win8 requires to download driver from link.
Bluetooth Link: https://www.dropbox.com/s/fe6oy6n3aos1rdq/n.rar?dl=0)