Solar panel charger power bank external battery backup for products which need to charge with USB, such us Apple, Nokia, Samsung, MP3, MP4, PSP, GPS, Digital Camera, etc. As for other special mobile phones or other devices, you can also connect the portable power bank by using your original USB data cable. Features and specifications: – 100% Brand new and high quality – This product is a solar emergency charger, 2 USB port can Power for two devices simultaneously. – Meet an emergency: When you go outside or power cuts, you also can use your mobile phone with solar energy. – Convenience: Whenever and wherever you are, you can charge your mobile phone in time. – Environment protect, save resource: You can use solar energy to charge your mobile phone wherever and whenever. – Exquisite workmanship, high capacity – LED remaining power smart tips – Equipped with dual USB ports – Compact size and lightweight design, convenient to carry – Capacity: as you choose – Solar panel: 2W – Input: DC 5V 2.0A – Output1: DC 5.0V 1.0A (Max) – Output2: DC 5.0V 2.1A (Max) – The battery indicator: 4-LED indicate – Compatible with: iPhone, Nokia, Samsung, Sony, xiaomi, etc – Dimensions: 16 x 7.9 x 2cm (L x W x T) – Color: Black, Green, Yellow, Orange Note: 300000 mah is a theoretical capacity from the company.You can charge 4-10 times(depending on your phones conversion rate) at one go. we guarantee 3-4 times of charging capability. About solar function: The sun will charge this charger to 100% but due to current technology and limited size of the solar panels and the Solar Insolation in your area, it could take 8-21 days for a full 0-100% charge. Package Included: 1 x Dual USB Solar Power Charger 1 x USB Charger Cable 1 x hook 1 x instructions