The battery life of about 6 hours can be a good choice, the case is over 20 hours. For me, features like noise canceling don't matter, I can only listen when I need it. I need it while sleeping or watching videos, other than that, I think I will use it very little. I listen to music for maybe 1-2 hours, even if the times are short, I am a little picky about the sound. I am not a careful user and I can use it in scenarios such as rain and I don't care about the device. I listen to standard lossless music with my iems. In other words, the usage scenario of tws is my search for a model that can replace my entry-level wired models. I tried the converters you mentioned and did not like it. I don't want a huge converter in my ear. I knew I paid for the feature instead of sound, but I didn't know that the difference was that much.
i don't need noise canceling,
must be ldac,
ease of use could be good
sound is more important
By the way, your thoughts on ci fi caught my attention. Up to the $200 band, most european brands cannot compete with ci fi. still, if I was going to order something high-end, this ci fi would not be, in dacs, I had serious problems with ci fi products other than certain brands. that's why I try not to enter ci fi when choosing an amp, except for brands such as ibasso or shanling. I love ci fi models, certain brands have good products on the market. I tried nearly 40 models just this year.