The APC by Schneider Electric Easy UPS offers power & surge protection for wireless networks, computers, gaming consoles, and other electronics in your home or business. This UPS supplies battery backup during outages & unstable voltage fluctuations, as well as provides protection from damaging surges & spikes. It helps protect your data & keep you connected. Automatic Voltage Regulation (AVR) Automatic Voltage Regulation boosts/trims the AC voltage when it drops/exceeds levels. This allows the equipment plugged into the unit to operate during low/high voltage conditions, conserving the battery power in the event of a power cut. The Easy UPS will switch to battery power if the input voltage level becomes too low/high for the Automatic Voltage Regulation to compensate, or if the AC power is distorted. Quick mute The Easy UPS is able to temporarily mute user-correctable audible alarms such as On battery. During such audible alarms, a short press (less than 2 seconds) of the power button will temporarily mute the audible alarm until the condition has been reset. A short double beep will confirm that Quick mute has been activated.