1. HDMI 2.0 Audio Extractor 4K@60Hz with Toslink SPDIF (Optical) Digital Audio and RCA (L/R) Stereo Output. Extract digital audio signals to your soundbar or surround sound system via optical interfaces, or connect headphones and speakers through 3.5mm audio or (L/R) stereo interfaces. It is an ideal solution for devices lacking optical audio outputs or HDMI audio support. The product also features volume control for flexible adjustment of analog output levels (3.5mm AUX and R/L). 2. Ultra HD 4K@60Hz Resolution: Supports HDMI audio conversion at 4K@60Hz, 4K@30Hz, 1080p@30Hz, 1080p@60Hz, 1080i, and 720p. Compatible with all 3D resolutions, HDMI 2.0 (backward compatible with HDMI 1.4), HDCP 2.2, RGB 4:4:4, YUV 4:4:4, YUV 4:2:2, 18Gbps bandwidth, and HDR for sharper, more vibrant visuals that restore truetolife effects. 3. Three Audio Output Modes: The HDMI 4K audio extractor offers three audio modes—Pass, 2.0CH, and 5.1CH—to accommodate different device requirements for seamless operation. The 3.5mm and RCA (R/L) outputs support 2.0CH PCM/LPCM stereo, while the Toslink SPDIF (optical) output delivers 5.1CH Dolby Digital, Dolby TrueHD, AC3, and DSD audio formats. 4. Broad Compatibility: This HDMI audio splitter works with most HDMI source devices for stable, lossless video and audio transmission. Input compatibility includes Bluray players, DVD/HD players, cable/satellite boxes, Fire TV, PS3/PS4/PS5, Xbox One, PCs, laptops, HD cameras, and DVRs. Outputs support Ultra 4K TVs, HDTVs, monitors, projectors, headphones, speakers, amplifiers, soundbars, and other audio systems.