I have a pair of cheap (used outdoor in wet and muddy conditions) bt IEMās which work great off my iPhone but failed to pair with my R4 so sorry canāt help with volume problem 
anymore else on here had problems with bt volume?
Is it ten characters?
If youāre using Bluetooth IEMs, bluetoothed to an R4, power is not a factor. You will likely need to increase the volume on the buds themselves. Iād get those loud and then vary the volume with the R4.
The R4 really shines with wired IEMs.
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X2 finally managed to pair my cheapo set and with mid gain at %80-90 itās 
solidā¦@Ryland_Johnson make sure the R4 volume cap is removed 
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I guess Iām in agreement as I never really listen to music via BT just podcasts etcā¦In fact the only BT we use on a daily is to monitor our solar via Victron MPPT battery app 
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Oops, wrong thread
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Hello, how ON EARTH do you find the GOOGLE Play store on the HIBY R4? nothing online i could find and couldnt figure it out.
Hmm, mine came with it pre-installed. The icon is titled āPlay Storeā no mention of Google.
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Sorry I know this is an old post but am I understanding this correctly that you are using the LO mode to power IEMs/Headphones?, I was under the impression that using LO was a Pre-Amp mode that bypasses some of the AMP circuitry and might have some negative impacts on IEMs/Headphones?
LO ā JDS ATOM 2 ā IEM/Headphones
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Hi, I have a new HiBy R4 and no matter what I try or change all of my uploaded music is being added to both the SD card and the internal storage. Itās like itās making a copy of everything. If I try deleting the songs on the internal storage it deletes it on the SD card as well. Not sure if this is a formatting issue. Iāve seen a lot of other people report this issue but canāt seem to find an explanation or solution anywhere. Please help, this is driving me crazy.
Are you using the stock HiBy Music app exclusively? Or have to added other Android music apps to your configuration?
Have you tried seeking tech support from HiBy?