【HDMI to HDMI + Audio Extractor】This adapter support HDMI input and Output HDMI SPDIF Toslink Optical, synchronous video and audio splitter without delay.By using this, you could share the video or games on big screen ,display,monitor or HDTV via HDMI cable,and separate audio by digital SPDIF optical Toslink or analog 3.5mm aux jack to your audio devices such as AV amplifier or active speakers.