The TR302 has the broadest practical compatibility as long as you have a 3.5 mm headphone output: phones, tablets, laptops, and other AUX devices. Reviews mention use with various devices and headphones, and its compatibility score is high.
The Opera Plus is compatible with many device types in principle, but for TV use it requires your television to have HDMI ARC, Optical, or AUX output and you need to confirm those ports are available (not already occupied). If your device lacks 3.5 mm output, TR302 won’t help; if your TV lacks the listed outputs, Opera Plus won’t fit your setup.