Sennheiser AC 3-US Antenna Combiner CurrentID=1641 opticalCON ADVANCED further enhances the

opticalCON ADVANCED further enhances the original opticalCON making it more robust by adding lockable and water proofed metal caps as well as rubber guards

Thanks to a built-in mini-USB port

iPhone and iPod touch

omnidirectional

and also makes a very nice piano with the fitted Piano Board and piano-weighted keys

Sennheiser AC 3-US Antenna Combiner CurrentID=1641 opticalCON ADVANCED further enhances theThe AC 3 US Antenna Combiner from Sennheiser effectively combines up to four wireless monitoring transmitters for the ew series using one shared antenna. Power is supplied to the SR 300 IEM G3 transmitters over the BNC cables, eliminating separate power supplies for the transmitters.