Quick Details Certification: CE ROHS Output Interface: Double Usb Input Interface: Micro USB, USB Type C Supports Solar Energy: No Type: High Capacity, Portable, Portable Battery Charger Power Bank, USB Universal, Digital Display Battery Type: Li - Polymer Battery Place of Origin: Guangdong, China Brand Name: OEM Model Number: P331 - SY2C - 20000MAH Weight: 410g Socket Standard: Universal, Micro USB Protection: Over - discharging, Short Circuit Protection, Low Tension, Over Power Protection Function: Cell Phone Battery Charger Material: ABS + PC Battery capacity: 20000 MAh Item: Power Bank Digital Display Logo: Accept Printing OEM Logo Cycle Life: 500times Style: Easy Carry Cell type: Li - Polymer Grade: A + + Warranty: 1 Year / 12 Months Is LED Lamp Illumination: No Dimension: L143 * 67 * H27.5mm Supply Ability Supply Ability: 15000 Piece/Pieces per Day