✔20000Mah Power Bank, Lithium Polymer Battery, Input : Dc 5V/2.1A | Output : Dc 5V/2.1A, Dc 5V/1A with Led Indicator ✔Multiple Protection Security System - High performance security protection supports overcharge, over discharge, over voltage, over current and short circuit protection. ✔Stylish and Powerful 100% PC+fireproof material, each external battery pack has passed high and low temperature test, 4-level LED indication showing how much back-up energy is left in the power bank and inbuilt smartchip protect your devices against any charging accidents, Built-in safeguards protect your devices against excessive current All Service cost covered for 365 days from the date of purchase, If Buyer Have Any Query Call On Toreto Tollfree No : 18001027427 Note: Liquid and Physical damage not Covered under waranty.