Bluetooth volume too loud
I have an iphone 7 and a jabra move bluetooth headset, and whenever I use it, I can not turn the volume all the way down, and the second lowest volume is still too loud. I have tried with other headphones, and the problem still occurs. I have also tried to reset the device to factory settings and deleting everything, but it doesn't help. I recently got a replacement device because of water damage, but even that didn't fix the problem. How can I fix this?
I'm sorry for the bad english, it's not my first language.
iPhone 7