Stream your music wirelessly to two separate speakers at once! Easy to set up, these professional grade speakers are the perfect in any setting: studio, living room, bedroom or even as a Mac book companion. The master speaker’s Bluetooth compatibility allows it to receive quality streaming audio from any Bluetooth transmitting device. The master speaker is then able to transmit a wireless HD audio stream to the secondary slave speaker included. It also features RCA, XLR and USB inputs. One-hundred plus additional slave speakers can be incorporated into the setup, thus, creating an endless wireless speaker system. Both speakers are AC 110/60 Hz.