There are quite a few multi-room wireless systems out there already, though some are wi-fi rather than bluetooth. Sony, Cambridge Audio, Bose, Sonos, Pioneer, Bluesound, Denon, Korus, Polk and Samsung to name a few.
I understand that there are full system products out there. Those are also quite expensive. This would be an accessory that would allow one to connect bluetooth speakers they already have or enable a cheaper alternative or allow one to pick speakers they want rather than purchasing a complete system.There are quite a few multi-room wireless systems out there already, though some are wi-fi rather than bluetooth. Sony, Cambridge Audio, Bose, Sonos, Pioneer, Bluesound, Denon, Korus, Polk and Samsung to name a few.