Works just fine! I use it on an older compact stereo system from 1989 and transfer the sound to a soundbar with Bluetooth! Just plug into the headphone jack, for the better sound, or use the RCA outputs with an adapter, doesn't sound as good and the volume is controlled by the external device. It is best that you use the device as close to the Bluetooth receiver as possible, 5-10m and it skips but if it is 1m - 4m away, it is totally fine. Pairing the device was pretty simple too. Just make sure that your Bluetooth device is in pairing mode and that you're close to it to pick up the signal. Charging is pretty fast too, uses USB-C. Lasts several days without a charge when using consistently.