You might have bought Bluetooth earphones, and while they might work on your modern phone, they seem to not work properly on your TV... or older phone... or any other Bluetooth transmitting device!
I bought Redmi Airdots 1 year ago, and while it would work just fine on my phone, it would have clipping with my TV, so I wasn't able to watch VSauce on it.
A while after, I would notice not-so-modern phones would have the same issue.
The cause is actually simple. Interference. This interference can be cause by multiple things, but the most common case is WiFi.
Other things that can cause it:
- Multiple Bluetooth devices being connected to the same device (especially on not Bluetooth 5.0 devices)
- Other Bluetooth devices (overall)
- Any devices close to you with WiFi or Bluetooth connectivity.
- Any device that uses 2.4GHz bands (god I hate 2.4GHz)
- Microwaves (while microwaving)
- Routers
Deactivate, turn off, or move these always-on devices away. Sometimes, just turning off your devices' WiFi solves the issue completely.
It's nice to check, more specifically on TVs, like noticed before, if you have any other Bluetooth devices connected. More specifically, a lot of TVs have really nice Bluetooth remotes, but because a lot of them have poor Bluetooth chips as well, they will cause interference with your earphones, and it might be a good idea to unpair them, to use them on infrared mode only.
Another place that you could have two Bluetooth devices connected, is smartwatches connected to your phone, especially if both of your connected devices have poor or outdated Bluetooth chips, or worse, if your device, your phone, has a poor Bluetooth chip, and like before, especially if it's not Bluetooth 5.0, as it's designed to work with multiple devices connected.
If deactivating WiFi fixes the issue, check if you don't have a 5GHz band on your router, and if it's compatible with your device, as if you're connected to 5Ghz, WiFi wouldn't have an issue, since it's not colliding with another 2.4GHz band.
TVs will usually not have 5GHz WiFi, but they would have Ethernet, which is a better option than both. Use it if you can.
That's it, if you tried everything here and it didn't work, it must just be that your devices have poor Bluetooth chips, and you can't do much about it. If you found any other things that can cause this issue, and is common enough, you can contact me and I will add it.