- Dual USB output; overheat / over-current / low voltage / short circuit protection - LED battery indicator and illumination; MicroUSB charging port Performance parameters: - Input voltage: 5V, + / - 5% - Input Current: 1000MA - Output voltage: 5V, + / - 5% - Output current 1: 1A, + / - 5% - Output current 2: 2.1A, + / - 5% 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!