HDMI to RCA Audio and CVBS NTSC, PAL, or S-Video Converter : ID 3537 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Dual HDMI eARC Audio Extractor 4K@60Hz with Optical Port & 3.5mm jack, 18Gbps bandwidth (HDA-931) | OREI
Kramer High-Speed HDMI Cable with Ethernet and C-MHMA/MHMA-3 B&H
Amazon.com: HDMI Audio Extractor Splitter 4K hdmi to hdmi 3.5mm Audio Adapter Converter with AUX(RCA L/R) Stereo Audio Output Support 1080P 3D Compatable for PS4 Fire Stick Blu-Ray Player etc. : Electronics
HDMI 2.0 Audio Extractor/Embedder
3x1 HDMI Switch with Audio Extractor, Proster 3 Port 4K HDMI Switcher HDMI Audio Converter Include
HDMI-4K De-embedder
Digital Tv Channel Converter | Analog Converter Digital Arc | Arc Audio Return Channel - Audio & Video Cables - Aliexpress