Turn android into bluetooth speaker?

[InGearX]

There is an app to make it a mic
https://play.google.com/store/apps/details?id=com.wo.voice

I hope to find one to make it a speaker... (my laptops sound daughter board is go

 

[RazzMaTazz]

I could be wrong but I don't think Android's Bluetooth stack allows it to be a stereo receiver.

You should be able to buy a small USB sound card for a few dollars, like this one...
Amazon.com: NRGTech USB Audio Adapter, C-Media Chipset, RoHS compliant, For Windows and Mac, Plug and Play and LED activity Indicator.[Updated Version]: Computers & Accessories