8 built-in suction cups on wireless charging surface hold your device ABS white plastic shell with gray PC trim UL Certified, Grade A battery Power bank capacity: 4000 mAh Standard USB Output: DC 5V/2.1A Micro USB Input: DC 5V/1.8A TYPE-C Input: 5V/2A Wireless Output: 5V/1A Certifications: UL Certified, FCC, MSDS, UN38.3, EMC and CE Approx power bank recharge time: 4-6 hours Indicator lights – Blue for battery levels; green for wireless charging Charges through most protective cases Wall charger not included Includes Micro USB charging cable NOTE: If your device is not compatible with wireless charging you may require external wireless charging receiver or receiver case Connect a USB cable to the device port for optional wired charging