I would like to be able to play through my laptop (USB keyboard controlling a midi VST, BiaB or other audio backing, no vocal other than perhaps a welcome between tunes

I want the casual passerby to hear nothing unless they see my sign saying "Tune to Bluetooth XXX to listen." It seems 25-30 foot range is plenty, not AC powered. This way noboy that noes NOT want to hear does not. How do I boost my signal from the laptop and is there a limit to the number of listeners - don't see why there should be, but...)


Anyway, votes for Best Bluetooth Transmitter/Booster?


Thanks


It's all about the music.
(I keep telling myself that...)
http://www.davidkempton.com