Great gift idea for your next powerful promotion, your client will love to charge their devices with our universal powerbank! Our universal powerbank chargers are small and compact making them great for charging your electronic devices while on-the-go, especially when you are running low on power! good for silkscreen and full color imprint logo. Input: DC 5V/500mA, Output: DC 5V/1A Available Capacity: 1800mAh / 2000mAh / 2200mAh / 2600mAh. UL CERTIFIED this fantastic favor includes an auto on/ off with overcharging, over discharging, overheating and short circuit protection.This portable, lithium ion battery allows you to charge your smart phone, MP3 player, MP4 and other devices anywhere.