They do what you need. Let me add a 3.5mm headphone jack to my iPhone that no longer has a headphone jack. I use one to connect my phone to the crappy speakers built into my kid's stroller so he can hear Wheels on the Bus while we walk. works great because in this case I don't care about the sound quality. However, I use a different pair to connect my phone and use the Roku app with my Roku TV after my wife goes to bed so I can watch TV and not disturb her. My Bluetooth headphones introduce some audio delay, so I'd rather use plug-in headphones for that. But there is definitely some loss of sound quality when using this adapter. There is a constant hum or hum that I know is caused by the adapter, not that noticeable during the loud parts of the shows I'm watching but definitely noticeable during quiet scenes. BUT it's better than the audio delay of bluetooth headphones and better than not watching at all. Plus for $4 what else could I expect.
2 Pack GLCON EVA Carrying Cases - Small Electronic Case For Earbuds, Earphone, Charger & More - Shockproof Exterior & Portable Storage Pouch Bag - Blue
24 Review
Large Waterproof Cable Organizer Bag For Travel, Universal Electronics Accessory Holder, Portable Gear Carry Case For Cables - Black
28 Review
Soft Silicone AirPods 3 Case Cover With Fur Ball Keychain - Shockproof Protective Cover For 2021 Version Charging Case With Visible Front LED - Ideal For Women And Girls - Light Purple By OULUOQI
20 Review
Elago AirPods 2 Dust Guard Cover - Gold, US Patent Registered - Compatible With Apple AirPods 2 Wireless Charging Case
27 Review