Solar backpack 1.Fabric:600D polyester 2.The board of solar energy: 2.7W 3.Application mobile phone ipod MP3 Solar backpack 1.Fabric:600D Polyester The board of solar energy:2.7Wpcs/ctn:10PCSExport voltage(V):5.5VApplication:mobile phone, ipod,mp3 G/W(Kg):15KGSCertification:CE/ROHSCarton size(cm):49*33*50cmMQ:500pcsNi-MH battery pack (without batteries)1800 MAH Lithium batteries Solar backpack