My wife bought one of these and we didnt open it for about a month. It runs for two minutes before quickly losing power until it's completely dead. We've left it on the charger for a whole day until it flashed indicating a full charge and it still lost power within two minutes and died quickly thereafter. Needless to say we're disappointed considering the hefty price of this thing and going to try contacting them to send us a replacement. I'm not hopeful though, since we waited a month to try it.Après 8 mois d’achat… il ne fonctionne plus. Il ne se met plus en route malgré une charge complète et les voyants qui clignotent.Principalement utilisé pour sa fonction de massage dorsale.