Montclare Executive Power Bank is the best selling power bank for your daily promotions. It was sturdily built with a solid precision aluminum case, quality electronic components, and a Lithium Ion battery inside. It is our most affordable power bank and works perfectly for any mass marketing campaigns and events! *QuickShip in-hand delivery within 7 business days *Solid aluminum casing *High-end look and feel *Precision spot color or full-color decoration with the industry's very best technology *Standard white box, charging cables, user manual Specifications: Capacity: 2200 and 2600 mAh Output: 5V~1000mA Input: 5V-1000 mA battery inside