Blitzwolf WA3 speakers

Hi
I have 2 x Blitzwolf WA3 speakers which are paired. I play music through any one of 4 devices, a phone or one of 3 tablets, via bluetooth, all Android devices.
The speakers are fully charged, and so is the music playing device.
The speakers and the music playing device are all within 1m of each other.
There are no other blue tooth devices within range.
After about 30-45 mins the bluetooth drops out.
The playing device still shows a track being played and the speaker lights are still on but the connection is lost
I have tried a factory reset without success. I have tried different music players without success.
I also have 2 x Blitzwolf MP4 speakers which play music without any problem.
Any ideas?

Welcome, Bryan.

It’s better to add some relevant details right away.

Like: Homey model + firmware version, app name + version.

This increases the chance to a useful reply :wink: