Includes wireless headphones?? wireless transmitter that acts as the headphone charging dock and two AAA NiMH rechargeable batteries</br>Lightweight radio frequency (RF) wireless?? on-ear headphones for use with TV and Hi-Fi Audio</br>Interference-free reception through walls?? ceilings and outdoors up to 300 feet</br>Can be connected with additional compatible headphones (sold separately) for mutiple users</br>2-year limited warranty only when purchased from an authorized dealer</br>Not compatible with Bluetooth technology</br></br>Product Description</br></br>The Sennheiser RS 120 is a lightweight RF wireless headphone system with open?? supra-aural headphones. It includes: (1) HDR 120 headphone?? TR 120 transmitter (audio cable is attached)?? Transmitter power cable (in a small white box- its there?? trust us)?? (2) AAA NiMH rechargeable batteries?? RCA to 1/8"apter?? 1/8"to 1/4" audio adapter?? Instructions for use</br><br/>http://www.amazon.com/gp/product/B0001FTVEKKshionable