PRODUCT GRADING (Grade A) - Excellent Condition with Minor if any signs of use and wear > Refurbished to the highest standards. Retail Box WHAT IS IN THE BOX Sennheiser RS120 II RF Wireless On-Ear Headphones Transmitter TR120 II  PRODUCT DESCRIPTION The RS 120 RF (radio frequency) wireless headphones lets you enjoy sound without the cumbersome cables associated with traditional headphones. This system features a lightweight on-ear headphone that receives sound from a transmitter base when connected to an analog output of any audio source (like a TV, sound system or computer). The sound quality is Sennheiser; detailed and balanced with good clarity and bass response. These lightweight headphones, featuring a padded headband for comfort are ideal for long listening or TV watching sessions. RS 120 RF Wireless Headphones offer better performance and value. They draw on decades of Sennheiser engineering expertise to ensure focus on sound quality, reliability and durability. This wireless headphone system comes with an easy to use recharging system. The headphones are powered with NiMH batteries (included). Once installed in the headphone ear cups, the batteries are recharged by simply placing the headphones on the transmitter base. The transmitter also features an automatic on/off circuit. It powers on when the connected audio source is activated without switches or buttons. Five minutes after the audio source is turned off, the transmitter shuts off to conserve power and battery life. Additional headphones can be added to the RS 120 RF wireless system allowing multiple listeners to enjoy the same sound source (model HRD 120 sold separately). Compatibility The RS 120 RF wireless headphone transmitter connects to anything with analog audio outputs. This includes TV’s, audio components, computers, tablets and cell phones that have a 3.5 mm or 6.3 mm headphone socket or RCA audio output jacks. RF wireless is not compatible with Bluetooth technology. PRODUCT INFORMATION Is Discontinued By Manufacturer ‏ - ‎ No Product Dimensions ‏ - ‎ 22.5 x 13.3 x 8.5 cm; 230 Grams Date First Available ‏ - ‎ 30 Dec. 2010 Manufacturer ‏ - ‎ Sennheiser Logistic Service GmbH Item model number ‏ - ‎ 508681