Features: 1.Can be recharged through direct sunlight. 2.Over-charge, over-discharge, over-load and short-circuit protection. 3. Led charging indicator/ power indicator display 4. Elegant fashion design, very portable ¡ñspecifications: 1. Built in li-ion battery: 3.7v/3000mah;solar panel power:1.4w 2. Input: 5v/500ma Output voltage: 5.0v/1a (max); 3. Charging time by sunlight: 12-14 hours; charging time by usb port: 8-10 hours 4. Size: 138*94*16£¨mmweight:285g Fits for iphone, ipod, cellphones, digital cameras, mp3/mp4, psp, pdas.... Size: 138*94*16£¨mmweight:285g