This idea is bloody brilliant, but the quality leaves a lot to be desired. We ordered 2 twin packs and received them in less than a couple of weeks. A Lightning charger broke on the iPad. Thank goodness we had tiny pliers to pull it out because I'd be furious if that crap broke the unit. Another one out of 4 is no longer stuck in my Samsung device and takes less than 2 hours to fully charge and more than 6 hours to fully charge. I'm really dissatisfied with this product, but I can't even return it because we actually replaced all of our aging charging cables when they "worked" on day one. When we send them back we don't have any chargers yet.