Sennheiser HDR 120 Additional RF Headphones for the RS 120 Wireless Headphone System

The Sennheiser HDR 120 RF wireless headphones are designed for use with Sennheiser's RS 115, RS 117, RS 118, RS 119, RS 119-II, RS 120, and RS 120-II wireless headphone systems so a friend or partner can also listen along to the television with you. These headphones feature extended low frequency reproduction, a supra-aural, open-back design, and include two NiMH rechargeable batteries for up to 20 hours of listening time. Please note that these headphones will not function without a compatible base station.