No problem, as soon unwrapped soon turned on. Pairing with my Nokia lumia took only a few secondes.l'oreillette fits perfectly in my ear is voice recognition to call my contacts occurs without soucis.Oreillette in place, I hear good noises around me, circulation , ambulances, conversations.Cétait one of my fears, found myself isolated, deaf in one ear. The headset recharges in linsérant in its box which then serves as reserve of energy, otherwise the case and has a USB jack. (The headset in the box the box connected to a computer and charge.Le fashion job is clearly explained on the Amazon site.