Certification: CEMax Input: 20WShell Material: SiliconFeatures: wireless chargeSupport Quick Charge Technology: Two-way Quick ChargeInput Interface: USB Type COutput Interface: USB-Type C,Wireless ChargerBattery Type: Li-polymer BatteryBrand Name: TollcuuddaOrigin: Mainland ChinaType: Magnetic power bank Mini Magnetic Power Bank Wireless Fast Charging 20000mAh Portable Charger Exter