Sennheiser Set840 variant with bodypack receiver for use with headphones, induction neckloop or DAI cable (sold separately). Includes BA300 battery. For use with plasma-screen TVs., SET840S | Affinitech Inc.
mtb more energy »[BAT-248 - Li-Pol]« Kamera-Akku kompatibel mit Akku-Typ Sennheiser BA-300 150 mAh (3,7 V), passend für: Sennheiser RI 410 (IS 410), RI 830 (Set 830 TV, EKI 830, HDI 830),
Tokyo Metro 03 830 / Nakameguro Eki, Tōkyō — Trainspo
File:Kuroe-eki.JPG - Wikimedia Commons
Sennheiser EKI 830 Infrared Bodypack Receiver and EZT 3011 Induction Neck Loop | eBay