Hi there
Welcome to the HP Support Forums! It is a great place to find the help you need, from other users, HP experts and other support personnel. I understand that you are having trouble connecting a S6500 speaker set to some device. I am happy to help with this. Please identify what you are trying to connect to, the full product number and operating system in use on your computer. See the following, if you need help with that information.
How Do I Find My Model Number or Product Number?
Is the Windows Version on My Computer 32-bit or 64-bit?
You may find this of help for now: HP S6500 Wireless Speaker - Setting Up the HP S6500 Wireless Speaker.
Please let me know how that works for you, and if it does resolve your issue, please mark this post as a solution. Kudos would also be appreciated.