The case is tiny and it's a huge advantage because you can plug it into a non-bluetooth helmet which can remove the cord (bluetooth headset and become given the small size of the box can be connected without the gene via the male plug / male 3.5)
Personally I'm very happy with the sound is more than adequate and there may very lag of its image APTX link.
I use it with a bluetooth headset mdr-10rbt who is also listening in APTX TV is almost perfect (the micro image lag is correctable parameters in its lcd tv)
I use it on a smartphone perfect APTX note 3 to switch the sound of a streaming site on the stereo.
For me the sound is good and in addition the box works when it is charging.
For a microphone and receiver box emeteur (rare) APTX codec (rare) that works in charge (rare) less than 50 is the best choice.
5 stars
Ps: the APTX compatible devices are listed on the site jessebandersen (typing on google jessebandersen APTX).
