Two aspects: 1) Only one sound source can be connected to the Neo Audio Mixer via Bluetooth. The Bluetooth input is an alternative to the AUX input on the rear panel. These inputs can then be mixed via the right-hand control (the one with the music note symbol). I connect my mobile via Bluetooth and stream a Spotify playlist to the Neo Audio mixer. ---- 2) Only devices that can display a pairing dialogue can be connected via Bluetooth. Therefore, a smartphone can be connected. However, the microphone of your headset cannot, as your headset cannot display a Bluetooth pairing dialogue. ---- I hope I was able to help. Lg, Wouxun

I don't know that much

Unfortunately not