I left it at airplane mode

Oh I see. I plug my charger when battery at 90% Mine is old M30 with new 665 module & A2 amp No drain when power off. Also already try change to a new battery

Please also report about battery drains in this model It's quite bad. I left it idle overnight & it drop 25%

665 model, firmware still from factory. Is there any firmware update for this model ?

@Shanling setting to start battery charging not working on the new player Mine set at 40%, but it start charging even when I plug the charger at 95% Please check Also on battery drain

If you has to choose one between voltage & monachaa, which one would you choose ? Thanks

Right now I'm using opa828

Thanks, but I want to use it for Aroma Air that only has very minimum height space left, so I want to know if this buffer is thicker than empty dip8 socket or not

Thanks, I think about MK8

How much thicker this buffer compare to empty dip8 socket ? And how it's effect on A100TB Thanks

It happens to my Aroma Air (Bluetooth DAC AMP) with burson V5iD that's work completely fine with my other amps. And it's only happens with V5iD I thought that V5iD metal body make interference with bluetooth signal Maybe something similar happens here

How M1 compare against S17 Pro ? Please give your impressions Thanks

Please give your impressions when you have enough time with it. Also how those buffer boards effect on A100TB TIA

How this one sound on A100TB ? Now I'm happy with SS3602 & SS2590 combinations but interested with this 8802 Thanks

How you install this buffers ? You put opamp on top of this buffers ? Please post picture Thanks

With that bass, FF3 is one of the best for low volume listening

Nutube by the look of it ?

Thanks, Please give some impressions after you spent more time with it

Do you know what differences between 8801 & 8802 ? Thanks

@Shanling any info about battery drains ?

Try adding o-ring or spacer

That's plug for 3.5mm, I think it's the same purpose with simcard tool

I just realized that this new module not only failed to detect unplug headphone, it's also failed to detect headphone inserted On the old module when I plugin headphone there's notification on the screen 4.4mm detected or 3.5mm detected .... On this new module there's no notification. So I tried...

Already tried factory reset, also disassemble & reassemble the module ... no success For some of my iem (with dynamic drivers) & earbuds, I like to use Turbo gains with small volume Can you make default volume 20 only enforced if last volume used bigger than 20. If last volume used less than...

On my unit I can't select dual DAC even when 3.5mm headphone connected Music keep playing when headphone disconnected (setting already on "ON" positions) This is much to high if you use iem on turbo gain