Poor value for money
The headset is clean, well finished and the removable microphone is very practical. The bluetooth module works perfectly too.
But all this is normal for the price!
On the other hand what makes him really lack is the sound! Honestly the sound is mediocre... The bass is weak and the overall sound often turns to cacophony. The surround sound is just horrible, staying in stereo is a shame considering the price.
I would say that the comfort level is correct. The foam is a bit hard and the passive reduction power is modest, but in the end it's quite good.
The hs70pro brings bluetooth against the hs50pro which makes a headset more profitable to use because 60€ less expensive for wires.