Makes my older portable speaker relevant again.

hard to get it to switch between call and speaker or however the dumb thing works

Got some super nice surround sound speakers, but they are just a little outdated and don't have bluetooth

These speakers have a mode that allows them to work in stereo via Bluetooth, and this worked fine for a while but then started to be

It did was it was advertized to do, amazing sound out of my system (4 speakers and base)

my use is for a jwin battery powered portable speakers

connection was flawless remember this is a standard volume level headphone sound is great no static or cut outs no delay .. now what everyone wants to know but are not posting started work at 3:30 am turned it on played music from my phone ( had to connect a battery to my phone to keep it powered) but the Bluetooth device was running on my portable speakers for my full 8 hour shift no drop or cut out all from one charge so if i was asked should i buy this item i would say hell

As the capacitance is driven by MLCC caps, 0805's being the largest used here, which suffer from letting DC through at higher loads, the isn't enough for driving any decent speaker setup

I messed with some of the sound settings in Win10 and my normally pretty darn good desktop speakers still manage to sound like a pair of laptop speakers

The audio and microphone works great from my phone to my car's speakers

Battery life has not diminished as much as I would have expected over time, and even the microphone still works just as it did on the first day as well

The internal amplifier is strong enough to drive a pair of headphones as loud as if they were connected directly to the phone and the music quality is excellent