SPECIFICATIONSBattery Cell Type: LithiumBatteryCapacity: 20, 000mAhRated Input: DC 5.0V, 2ARated Output: DC 5.0V, 2.1A  Dimensions: 157.5*78.5*21mm20000mAh High CapacityIt holds enough energy to charge a phone and most tablets for days.2.1A Fast Charging for TwoItel exclusive charging technology ensures up to 2.1A charging speed for two device simultaneously. Recharge Your WayChoose between Micro USB or Type-C recharging way based on any cable you happen to have on hand. Anti-Slip TextureThe 3D texture is resistant to stains and scratches to keeo the elegant look and prevents accidental slipsSuperior SafetySurge protection, short circuit prevention and more advanced safety features give you peace of mind.