3 Ports HDMIMHL Audio Extractor with IR Remote Control, 4K ARC Audio EDID Setting 5.1ch PASS 2ch About the product 1. The device is one 3 port HDMI audio extractor with support of ARC,3D and 4KX2K,which can switch easily three HD sources or one MHL smart sources to one HD display. Also any of the input sources support the audio extract by the SPDIF and LR audio output channel. The Switcher supports ARC function that can do TV audio return back to the AV receiver. 2. Our devices offer solutions for noise, space and security concerns, data center control, information distribution, conference room presentation, school and corporate training environments. Features 1. One MHLHDMI double input and two HDMI input switch freely to one HDMI output. 2. Any input HD Source can do audio extract by the SPDIF port LR audio output port. 3. Support full HD 1080P, full 3D, 4K*2K 4. Support ARC function: Without adding one extra HDMI cable, it can reverse the audio to the AV amplifier by HDMI cable connection with HD TV while the HD TV receives the audio and video content. 5. MHL HDMI working in dual mode, can reduce the number of ports 6. HDMI to achieve the synchronization of audio signal separation. There are PASS 2.0CH 5.1CH three kinds of audio mode options 7. LED indication: When source or sink is working, LED related will go bright. 8. IR Remote can do switch to the input sources, and also you can press the switch button at device to do switch of input sources. 9. Input cable distance: Less than 10m AWG26 HDMI standard cable. 10. Output cable distance: Less than 15 AWG26 HDMI standard cable.