Type of Battery: Lithium Polymer battery. Capacity: 20,000mAh Weight: 530 grams DC-IN: DC5V-2.0mAh (MAX) DC-OUT 1: DC5V-2.1 mAh (MAX) DC-OUT 2: DC5V-2.1 mAh (MAX) Additional Fuctions: Remaining power indicator (Digital display) Usage count: Approximately 500 times Accessories: USB-Micro USB charging cable Supported devices : various iphone / ipad Micro USB Smartphones etc GiftU corporate gift expert, provides customised USB Power bank, mobile charger, solar charger and business gift set, small order welcome, quality assurance GiftU custom-made corporate gift. Innovative premium idea with professional gift solution. GiftU your best corporate gift partner!