√ Support eARC, ARC input. eARC input connector, (when used with the TV's HDMI/eARC connector connection) | √ RCA and 3.5mm headphone output volume level can be controlled via the TV remote control (CEC); supports input audio channel number indicator. | √ HDMI output interface, when used with the amplifier's HDMI interface connection up to 7.1 channel transmission, the interface only audio output, no image. Optical digital audio output interface, when used with the amplifier's optical interface connection can transmit up to 5.1 channels. | √ RCA left analogue audio output connector, when the 5.1 indicator or HD5.1/HD7.1 indicator is lit, there is no audio output on this connector, please set the TV to PCM output when using this connector; RCA right analogue audio output connector, there is no audio output on this connector when the 5.1 indicator or HD5.1/HD7.1 indicator is lit, please set the TV to PCM output when using this connector. When using this connector, please set the TV to PCM output. | √ 3.5mm stereo audio output connector, no audio output on this connector when the 5.1 indicator or HD5.1/HD7.1 indicator is lit, please set the TV to PCM output when using this connector.