Bought this to output sound to a pair of aptx-hd compatible headphones. Took a while to figure out how to pair to this dongle. For all intents and purposes it's a sound card/device with Bluetooth. Pairing is managed from the USB dongle by holding the pairing button in and not on the computer/device the dongle is connected. This is unlike any other Bluetooth dongle I've used. Has the advantage of remembering my headphones whatever device I plug them into. Not sure how to go about forgetting a device though. Worked with an older set of Bluetooth headphones and works fine on a Windows 10 computer and another computer running Linux/LibreElec/Kodi. Sound is good but couldn't say if it sounds any better than any other Bluetooth dongle. Price is a bit high but I had a gift card so this wasn't an issue for me.