This Bluetooth 5.1 USB adapter can create a wireless connection with other Bluetooth devices, including headphones, speakers, keyboard, mouse and mobile devices. The Bluetooth 5.1 + EDR (Enhanced Data Rate) reduces the loss of transmission speeds caused by the interference of the 2.4 GHz band and improves stability and anti-interference. Low energy consumption and compact factor allow you to leave it connected to the notebook. Equipped with an extra-long 2dbi rotating antenna for major transmission distances, combined with class 1 radio technology. This adapter is able to transmit up to 100 m away in open places. Main-capacity-Bluetooth 5.1 (class 1)- Low Energy Consumption- Employment Distance: 100 meters of data transfer up to 3Mbps- Compatible with Bluetooth 5.0/4.0/3.0/2.1- Equipped with a high gain antenna 2dbi- simple Plug and Play installation (Windows 11/10/8.1)