This product extends your existing audio system with a feedback channel loudspeaker, generating a realistic surround sound ,- Dolby Surround DE & EN coder ,- Enjoy a breath-taking Dolby-certified sound experience ,- Dolby Surround DE & EN coder ,- Powerful sound system for a captivating TV experience and pure music enjoyment ,- The analogue and digital audio inputs allow you to connect your device (TV / audio system) and play back its audio signal via the extension set. To do this, you can choose between a connection via a 3.5 mm audio cable (jack cable)/RCA cable or an optical signal cable ,- The loudspeakers feature a preparation for wall mounting or for attachment to a bracket for maximised use of the room´s acoustics ,- Easy operation with the enclosed remote control. Alternatively you can also teach your existing, original IR remote control to control the extension set , ,Note for Consumers: ,Positioning ,Position the transmitter below or in front of your image / audio source. Position the receiver and loudspeaker behind your usual seating position. ,The distance between the transmitter and receiver should not exceed 10 m. , ,Please note that the connection may require the output of digital audio signals to be activated on the image source. , ,The housing of the loudspeaker is made from hard plastic. Avoid direct sunlight, moisture (in kitchens or bathrooms) or positioning close to air-conditioning units. , ,Source of magnetic interference: ,older TV sets can be a source of magnetic interference. If interference does occur, increase the distance between the product and the image source. , ,Remote control: ,the teachable remote control must have an infra-red transmitter to allow it to be programmed. If the preferred remote control uses a different standard (e.g. Bluetooth), then teaching is not possible.