It will charge a 3000mAh phone battery 2.1 times and It will charge a 4000mAh phone battery 1.4 times. Input - Micro & Type-C Port.|LANDMARK power bank is sleek and stylish and has an ultra compact design. Due to the design, you can carry it comfortably in your pocket, bag or backpack with ease. Extend the working time of your mobile phone, tablet, Bluetooth speaker, e-reader or any standard USB powered device with 10000mAh Power-Mate kind universal power bank so you can engage in your devices without plugging it into wall charger. Compact body along with smooth touch finish gives the Power Bank its premium look. Warranty Summary: 1 Year ; Covered in Warranty: Manufacturing Defects ; Not Covered in Warranty: Physical Damage.