Features and Benefits:This portable charging station system eliminates the need for extension cords and power strips, which are inconvenient, unsightly, and a potential trip hazard;A single EdgePower rechargeable power bank can charge a typical laptop up to 2 times, an average smartphone up to 14 times, and a standard Chromebook or tablet up to 4 times;If desired, each battery-powered charging station can simultaneously charge a laptop and 2 mobile devices;The Clamp-On Desktop Unit works with EdgePower Rechargeable Batteries, which are interchangeable to allow for extended use;Backlit On/Off switch activates and deactivates the AC outlets to help conserve batteries;One-year limited warranty from date of purchase;Bundle Specifications:Rechargeable Batteries: 3Clamp-On Desktop Charging Units: 33-Bay Base Charging Station: 1Recommended number of users (frequent-to-regular use): 3Recommended number of users (occasional-to-frequent use): Up to 12;Bracket to mount charging unit to metal and plastic Luxor cart available.;Enjoy the convenient cordless charging of mobile devices. The KwikBoost EdgePowerâ„¢ desktop charging station system is a total solution for laptops and mobile devices in workspace and classroom environments. EdgePower eliminates extension cords by putting power right where you need it.The KwikBoost EdgePower Light Use Bundle includes 3 Rechargeable Batteries, 3 Clamp-On Desktop Charging Units, plus a 3-Bay Base Charging Station. This system is ideal for small-to-medium-sized rooms where users require frequent access to supplemental power.