Sennheiser HDR120 Over-Ear Wireless Headphones For RS110 & RS120
Sennheiser RS 120 II On-Ear Wireless Stereo Headphone System - Silver 615104099227 | eBay
HQRP TWO Rechargeable Batteries compatible with Sennheiser RS110, RS120, RS130, RS160, RS170, RS 180 Headphones - Walmart.com
Amazon.com: Sennheiser RS 120-W On-Ear Wireless Headphones for Crystal-Clear TV Listening with 3 Sound Modes, Lightweight Design, Easy Volume Control, 60 m Range and Convenient Transmitter/Charger Combo - Black : Electronics