Battery Power Saving extends standby time of mobile by up to 30% by automatically tweaking the settings of your phone at the battery level you set. As activating Power SavingMode, Switching Profile and Closing apps that drains mobile battery. New update: Switch back to ‘Previously used profile’ when you connect the charger, or when you start using your mobile. Get voice alerts when battery is completely charged and when the battery power is lowand for every unit decrease of battery power. Compatible with S^3 / Anna / Belle Smart Phones.