SENSE 4 Dual output with 1 fast charging 2.1A port 10,400 mAh Lithium-Ion battery capacity Input: DC5V 2.1A / Dual Output, 1.DC5V 1A, 2.DC5V 2.1A, Power: 12W Max. Charging Time: 13 hrs ( 6.5 Hour if using Romoss AC12 iCharger 2.1A Adapter) SENSE 6 Exclusive Online Edition Power Bank Dual output with 1 fast charging 2.1A port 20,000 mAh Lithium-Ion battery capacity Input: DC5V 2.1A / Dual Output, 1.DC5V 1A, 2.DC5V 2.1A, Power: 21W Max.Charging Time: 26 hrs (13 Hours if using Romoss AC12 iCharger 2.1A Adapter via outlet) -Model: LT20 -20000 mAh Capacity -High Quality Li-ion Battery cell -Dual output with 1 fast charging 2.1A port -3 Input: One is for the Android, one is for iOS, and the other one is for the Type-C -Input: (Lightning) 5V:2.1A (Micro USB)5V:2.1A (Type C) 5V:2.1A -Output 1: 5V:2.1A -Output 2: 5V:1A -Has a LED display on the top, so that you will know how many percentage of power it has. -10 intelligent security protection, Smooth Aesthetic design, s-tylish