Benefits:
+ Excellent sound by APTX codec (I have a Samsung Galaxy S4, which supports this codec)
+ The operation is also possible during charging
+ Stable Bluetooth connection
+ Quality materials
+ Good accessory
Disadvantages:
- Jack socket is a little stiff
I had initially bought a A2DP receiver from B-Speech (psc = 1). The sound, however, is miserable. Bass-heavy and low altitudes, to compression artifacts. Therefore, I have invested a little more money and I ended up at this product from Avantalk. Important: the transmitter and receiver must support the APTX codec, otherwise the sound will not be better than that of the B-Speech products. This is due to the A2DP protocol.
By Avantalk I can not see any differences from the CD playing in the car. I have a pretty good sound system in the car and know it very well because I'm high-mileage drivers.
This device seems to be the only one that is the codec includes APTX and equipped with a micro-USB charging socket. Even with its compact size, it is therefore ideal for use in the car. The price / performance ratio I find very balanced.
From me there is a strong buy recommendation!