Does anyone have an issue with Bluetooth headphones with a sort of wavering speed in the music, where it sort of goes faster or slower in pitch? In my experience with Bluetooth it seems this is a problem and I tend to avoid this technology as good as it mostly is, noise-wise, compared to 900mhz or 2.4ghz wireless sound technology. Maybe the tech has improved to the point that this issue is gone. How is the X5III in this area? Is the sound steady and not up and down pitch-wise?
BTW, just got my X5III and very impressed by the sound using the native player and also Spotify. Mine came with 1.1.0 FW and I OTA'd to 1.1.7 (with some trepidation) So far so good but I haven't pushed it very hard. Only thing so far is that it is sensitive to proximity to wireless router, much better behavior in wireless mode when closer.