Arrived at first incomplete and with the wrong cable, the seller finally reacted late to correct his mistake. After testing, the device is really very uncomfortable to wear: it is very heavy, fits relatively poorly and the interior cushions are of little use. After a 30 minute session, I had big red marks on my face from the weight of the mask. I found it very painful. In addition, the remote control is very basic and does not allow you to easily change programs. Honestly, avoid it.
Works good fast delevery