The headband arrived quickly, well packaged. He's like the picture. Very light and comfortable. Unfortunately it does not work. It is in charge, turns on blue but as soon as I remove the charger, it does not respond, the light turns off and I can press the key to start it, it doesn't work. I have not yet discussed with the seller that's why I put 3 stars. I just rectify my opinion: the headband does not work at all. I contacted the seller to find an arrangement the day after delivery. He promised me a refund. Nothing on my account to date after 1 month of patience and of course I can not open a dispute anymore. So, given the dishonesty, I strongly advise you to place an order at home.