Hey there @marcel1990,
 
Thanks for posting and welcome to the community!
 
If your Bluetooth connection isn't working, we'd suggest first checking the following:
- The Bluetooth devices are within 1 meter (3 ft.) of each other, and away from Wi-Fi routers, personal computers, microwave ovens, refrigerators, etc (to avoid radio wave interference).
- There’s no obstacle in the way of the Bluetooth communication. If a device is in a case, you may need to remove it.
- Both devices have sufficient charge or power.
- Turn off the Bluetooth function of other nearby Bluetooth devices. 
 Note: Bluetooth audio devices can’t connect to multiple source devices at a time. Be sure to disconnect any current connections to use it with another device.
- If you’re using headphones set with a noise canceling function, turn the noise canceling function off.
- Close Spotify while establishing the connection.
- Close any other apps you’re not using. 
Once you’ve checked the above, try restarting the connection:
- Turn off the Bluetooth on your speaker.
- With the Bluetooth settings on your mobile/tablet/desktop switched on, delete the information of the speaker.
 Tip: The setting to delete is often called Forget.
- Turn Bluetooth off and back on for your mobile/tablet/desktop.
- Turn the Bluetooth on your speaker back on.
- Allow approximately 20 seconds for your mobile/tablet/desktop to detect your speaker. Once it appears, select it to pair. 
- Open Spotify and play something. The sound should now come from your speaker.   
On another note, let us know if the issue perists when using the Sony Headphones Connect app as well. 
 
Let us know how it goes 🙂
					
				
			
			
				
	KaterinaModerator
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