Juno Power NOVA Blox (Silver) - Aluminum Portable Battery Charger (4000mAh, Dual USB 5V 1A/2.1A, Digital LCD Screen & Flashlight) BEAUTIFUL DESIGN: The NOVA Blox is one of the most advanced portable battery chargers in the world; use it to charge smartphones, tablets, GPS devices, cameras, just practically anything requiring 5 Volts; carry it with you on a weekend trip, keep it for emergencies, or just carry daily for those power hungry devices; NOVA Blox comes in three beautiful colors: Gold, Silver and Grey. DURABLE: The NOVA Blox is extremely durable and well-tested; it is compatible with a wide array of gadgets, including iPhone, Samsung Galaxy, Motorola Moto X, HTC One, Nokia Lumina, Nexus 4 and many more; NOVA Blox is one of the most advanced portable battery packs and portable smartphone chargers on the market. ADVANCED: NOVA Blox uses powerful original Samsung Lithium Ion cells, which means our batteries are high-quality, unlike many other companies, using generic lithium ion cells; most common uses are for portable power bank, iPhone charger, iPad charger, Samsung charger, and much more. PORTABLE BATTERY: The NOVA Blox external battery delivers efficiency combined with durability like no other product on the market can. Manufactured with Samsung Lithium Ion battery cells and finished in an attractive brushed aluminum casing; it is compatible with a USB power adapter, USB battery pack, and USB battery charging stations.