[. . . ] Operation is subject to the following two conditions: (1) This device may not cause harmful interference; and (2) this device must accept any interference received, including interference that may cause undesired operation. [. . . ] All warnings on this audio system and in the operating instructions should be adhered to. Do not drop, apply excessive force to the controls or put heavy objects on top of the speaker. â· In order to protect the speaker system, avoid microphone feedback, continuous output from electronic musical instruments or distorted output from any signal source. â· Do not place the speakers close to fluorescent light sources or neon light fixtures. â· Although the speakers are magnetically shielded, keep magnetic storage media (disks and tapes) at least four inches from the speaker system in order to avoid data loss. â· WARNING: To reduce the risk of fire or electric shock, do not expose this speaker system to rain or moisture. â· Use only JBL-approved power supplies listed on the product label. Plug the left and right satellites into position on the rear of the subwoofer. [. . . ] JBL and Harman International are trademarks of Harman International Industries, Incorporated, registered in the United States and/or other countries. [. . . ]