... 5V * Charging Time: about 2.5 hours * FM Transmitter to all 2.5mm and 3.5mm digital player ... it under sunlight or with USB cable. * Compatible with: iPhone, iPod, all kinds of cellphone, PDA, Digital Camera, MP3 ... & MP4 Player.* It has two Port: iPhone Port and USB Port. * Without any additional cable, it ... MOQ: 1000pcs * Certification: CE.FCC.ROHS For Fm Universal Solar Iphone Charger