While the adapter did work out of the box I quickly put the CD in and installed everything I needed to very easily. After that, the adapter worked great! The range was good and I didn't have any issues with disconnecting or poor audio (I use this for my headphones). The audio was amazing (even better than my other Bluetooth adapter) and had no issues with it. Overall for the price, it is a really good Bluetooth adapter.
More Info:Bluetooth Adapter MUST Install Driver】: Support Windows 10 / 8 / 8.1 / 7, not mac OS, Linux. Please install the driver from the coming CD or EDUP website(model no: EP-B3519) before use. 【USB Bluetooth Dongle Compatible Devices】: Work with most computer brands: Dell, Asus, Acer, HP, Lenovo, Sony, Samsung, Toshiba, MSI, etc. Once plugging the Bluetooth Dongle, simply connect the PC with speakers, headphones, keyboards, mice via Bluetooth(not for car stereo systems, Xbox, ps4, or TVs). 【Do NOT Support】: We don't recommend using on car stereo system, Nintendo Switch, Xbox, ps4, TV, and 2.4G wireless mouse. 【Bluetooth V5.0 Have Better Performance】: With BT5.0 + EDR, turns your pc Bluetooth is capable of wider transmission distance (66ft.), faster data rate (2 Mbps), and lower power consumption. Backward compatible with Bluetooth 2.0/2.1/3.0/4.0/4.2. 【Nano Size Bluetooth 5.0 Adapter】: Extremely mini dongle allows you to plug it and leave it there, no need to remove it, without blocking surrounding USB ports. 【Package Included】: 1* Bluetooth USB Adapter; 1* Driver installation CD; 1*User Manual