Sennheiser RS-65 Wireless RF Circumaural Headphones with SRS Surround Sound Processor (Black) Supra-aural, hi-fi stereo headphones for superb audio quality Automatic tuning for better reception Volume and transmission channel can be set individually on the headphones Expand with an additional set of headphones for multiperson use Soft, cloth-covered earpads and headband cushion for comfortable extended use