eARC & ARC up to Dolby Atmos: Transmits high-bitrate audio formats like Dolby Atmos and DTS:X from a TV back to an AV receiver. Also backwards compatible with standard ARC up to Dolby Digital Plus 5.1CH, perfect for home theater setup. Ultra-Long Transmission Range: Easily extends eARC/ARC audio up to 330ft/100m using a single Cat 5e/6/6a/7 cable, ideal for long-distance audio return. Bi-Directional IR, RS232 & CEC Control: Control your AV receiver from the TVs location or vice versa with the included IR signal emitter and receiver. Seamlessly manage your audio setup. Plug & Play, Universal Compatibility: Works flawlessly with various AV receivers and display devices, like Denon, Marantz, Yamaha, Onkyo, etc. No software or driver is required; just plug and play. Important Notes: This product is designed for audio transmission and doesnt support video transmission. Both the transmitter and receiver require a power supply via Micro USB port.