[Bluetooth 5.0] Engineered with the latest Bluetooth 5.0 technology featuring four times the range, two times the speed, and eight times the broadcasting capacity of older versions of Bluetooth. The upgrades also include low energy consumption to conserve power and improved reduction of loss of transmission interference. | [Faster Speed, Longer Range] Get faster data transfer speeds of up to 3 Mbps, which is double what Bluetooth 4.2 supports and extended range of transmission distance up to 33ft/10M in open space. Note: operational range can be affected by walls, physical obstructions and wireless interference. | [Mini USB Dongle] Low profile compact small USB adapter allows you to leave plugged in your laptop or PC without blocking or interfering surrounding USB ports. Save space with this mini wireless USB dongle for Bluetooth printers, speakers, headphones, headsets, keyboards, mice and more. | [Stream Music & Take Calls] DG45 Bluetooth USB for PC connects with Bluetooth headphones or speakers for stereo music wireless streaming. Also, you have the ability to take Skype or phone calls using your headphones mic and use the USB adapter to transfer data files to / from mobile phones / tablets. | [Systems Support] Only for Win8/Win8.1/Win10/Win11 (driver required). ** Note: Not work with Mac OS, Linux, car systems, TVs. Not Recommend for Work PC if you cannot install any drivers. Game controllers may require specific drivers for different games / platform to configure button settings. NOT compatible with Xbox one controller or Nintendo controllers.