A stylish and easy solution to fit your outdoor audio needs. The two channel transmitter and wireless auto tune stereo speakers with double bass boost (DBB) give you hours of great sounding audio. Add up to 10 accessory speakers. You can add the Mini bullet II, Schooner II or Rock speaker accessories to any Schooner II system. Now you can easily and quickly enjoy the freedom of wireless technology with a set of two indoor/outdoor speakers.