Hello I am Samuel and I will help you.
A quick research effort says that there are issues with the compatibility with the new IOS but bear with me
Can you delete the partnership between the deice? Also hold the home and power button for 20 secs until it restarts. Then reconnect the devices
I was hoping it would help but I sort of figured it would not. It seems that as Apple updated the BT tech it has thrown off its compatibility with other BT devices.