I should have listened to the bad reviews, but then ordered anyway. The first device made unfortunately nothing - absolutely impossible Laden. My Ipod was after several hours still empty (with any other charger it can be loaded!). The unit has been claimed by me and exchanged by the seller. The second did the same as the first, namely nothing. The seller wanted to exchange again, I have dispensed with thanks. The money was refunded. I afterwards measured with both devices, the output voltage. There were 3.1 volts from both devices - 5 volts should be there. The only positive thing about this purchase was the service from the seller: Quick response, rapid exchange and speedy refund