Power Bank Aluminum - 2200 mAh - UL Certified Model Size:95x23x22(mm) Connect: USB + Micro 5.Input:5 V / 1000mah; Output:5 V / 1000mah.Complies with CE FCC RoHS UL UN38.3 Full color printing , Laser Engrave LOGO, Fast charging, The most popular promo gift . Complies with CE, FCC, ISO 9001, RoHS, UL, UN38.3.