This device is very comfortable, you can adjust and shape it to your body with those two arms that go over your shoulders, and you can set the distance from the mouthpiece to your mouth using that device on the cord.
I have also bought other products from this site and I am very satisfied.
Really very very good, much more durable than the previous model. And the delivery was very fast, it arrived in less than 24 hours and the packaging is untouched. And for those who have a precise technique of "tracking", it performs much better in that compared to the previous model. The only "problem" is the price, but it's totally worth it.
RECOMMEND !!!
The product's packaging seems to have been opened multiple times. A package opened just once shouldn't have the signs of wear that it has. Also, it's broken from the inside out! The product itself had no issues, but I have nothing to compare it to. Sure, these opinions may seem subjective or not, but consider them observations rather than criticisms.