Windows 10: Why isnt my sound coming out of my bluetooth headphones?

This happened a couple of days ago. I can connect my headphones to my laptop but the sound only comes out of the speakers and not my headphones. I've tried resetting my laptop and switching the output device but it doesn't show my headphones as an option. I have also tried costumer support but that also lead no where.

:)

 

bluetooth headphones

setting up win10 Bluetooth and my Bluetooth headphones work fine ,but every time I reconnect the headphones I have to delete them from Bluetooth settings and let win10 pickup the headphones again ,before they will pair ,then win10 want to reboot to add the headphones ,I reboot and they work fine ,but next time I plug the headphone in again they will not pair ,don't even get an option to pair till I delete the head phones from the list ,, any suggestions ,, thank

 

Bluetooth headphones


I bought these headphones Amazon.com: Matone® Qy8 [New Version Qy7] V4.1 Wireless Bluetooth Headphones Best In-Ear Noise Cancelling Headphones with Microphone for Running, Sports Accessories. I connected them fine to my Iphone and Ipod but having problems with Windows I got them to pair but sound still comes through regular speakers only. In sound settings it lists the bluetooth headphones but says disconnected. I click on connect but that does nothing. Do not know what else to do

 

Bluetooth headphone sound volume keeps changing.

I have a relatively new Bluetooth Pulse Echo headphone set and an Acer Aspire 3 notebook that has Windows 10 O/S. When I use the headphones with the notebook in wireless mode the sound volume alternates between normal and very low. I have run Windows Bluetooth fault finder and disabled sound enhancements to no effect. The headphones work fine in conjunction with my iPad however.
Could anyone suggest a solution for this problem please?