Brand new and high quality. Longevity life time and durable to use. Insert with 1300mA chargeable Li-ion battery. Can be used to charge for mobile phone, digital camera, MP3, MP4, etc. When you go to outside or power cut, you can use your mobile phone with solar energy. Whenever and wherever you are, you can charge your mobile phone in time, and you could talk with others when charging. Environment protect. Save resource. Over voltage protection for the circuit and your mobile phone. Small charge, safe use. Modern and portable. Stainless steel case, small size, string attached, convenient to take with you. Input: 120-250V 50/60Hz. Output: DC 5.5V 500-1000mA.