Wireless dual sound can be used to pair two speakers which has the wireless dual sound technology, Which are Aura Studio 2, GO+PLAY, Onyx studio 3, Onyx mini. Please note: Dual Wireless Sound only has the capability to connect no more than 2 speakers at a time. NOTE: The Onyx Studio 5, which also has Dual Wireless Sound, can NOT be used together with other products which feature DWS. Only 2 Onyx Studio 5's can pair with eachother.