Specs are quantitative aspects of the option such as the price
Pros
Pro
Built-in flashlight
The charger can be used as a flashlight, which is convenient for such a portable device that one will most likely carry around with them at most times.
Can't be charged and used as a charger simultaneously
There is no passthrough built into this device which means a user can not have it plugged in to an outlet to charge and also have a device plugged into it charging.