I've been using it with my Sony WH-1000XM3s all day but whilst wandering around Delhi. I did try it on my laptop last night. In both cases I'm very impressed.

USB A and iPhone adapters.

I got mine yesterday in India. Fits my phone easily with the case on.

I just had to explain to a friend how he could improve the sound of the new headphones (AKG K92) he is buying on his smartphone or laptop buying using an external dac/amp. Anyone it got me thinking so I thought I'd give my X3 a go, installed the drivers on my Windows 10 laptop and plugged it...

Sorry for the delay. www.aliexpress.com/item/32918005605.html

The battery arrived on Friday, fitted today, working well so far after a full charge. I will see how it performs over the next few days first and then over the coming weeks and months.

I ordered it. Chinese New Year is coming up and they won't ship after 12th Jan until the 3rd Feb.

I read somewhere that it's not so easy to replace the battery but in Chiang Mai there are many small phone repair shops that would be happy to help.

This is the battery I was talking about:

My original X3 needs a new battery and Fiio in Thailand don't have any which is the first place I tried as I bought it in Thailand. Is it the same battery as later generations of the X3? On AliExpress sellers want me to measure the battery to be sure which doesn't make me feel confident...