With JBL's Control 2.4G Wireless Speaker System, you can bring high performance sound anywhere in your home. Simply hook your iPod or portable audio player to the wireless transmitter and place the speakers wherever you want great sound. Or use this powered speaker pair as rear surround speakers without having wires all over the place. With 15W per channel and frequency response of 50Hz - 20kHz, these wireless speakers will add legendary JBL sound without the nuisance of traditional speaker wires