In 1962, Rauschenberg teamed up with Billy Klüver and other engineers from Bell Laboratories in New Jersey to create the sound sculpture Oracle (1962–65). Rauschenberg and Klüver scavenged metal parts—Rauschenberg called them "gifts from the street"—and assembled their gatherings, setting the units on wheels so that they could be arranged in different ways. They embedded AM radios in each of *Oracle*’s elements, along with cutting-edge wireless transistor circuitry. A control panel in the staircase unit allowed viewers to adjust the volume and scan rate without being able to tune into any one station. Although the work is no longer interactive, sound plays in an ever-changing flow of static, noise, talk, and music pulled in from the airwaves.