Soundcast ACR-212 AudioCast Wireless Receiver for PC, Mac, or MP3 Players AudioCast ACT-211 transmitter sold separately 2 receviers can be used with a single transmitter to create two zones Includes AC adapter and RCA/Mini connecting cables Range up to 350 feet Includes 3 audio cables; measures 6.8 x 2 x 3.5 inches (W x H x D); 1-year warranty