Hello, marecel33! Thanks for reaching out to Apple Support Communities.
We've reviewed your question and it looks like you are having some issues keeping your Beats connected to your iPhone via Bluetooth. It's understandable that you'd want this resolved, so allow us to assist with that. We’d advise taking the following steps, which may help with this issue: Reset your Beats and update the firmware. Testing while paired to another device may also expose an issue with the iPhone if that is the source of these issues.
If this does not resolve the issue or if you have follow-up questions, please let us know. We're here for you. Have a fantastic day!