The Acer Chromebook 311's certified-durable design, school-friendly features, and powerful battery make it a suitable choice for learners of all ages.Military Grade DurabilityThe Military Standard (Mil-std 810H) tested, impact-resistant body stands up all sorts of daily wear and tear. The shock absorbent bumper and reinforced design protects the device from drops as high as 122cm and up to 60kg of downward force. The widened brackets and reinforced Io ports protect against rough play while the unique drainage design of the keyboard protects internal components from upwards of 330ml of liquid.All-Day PowerGet the power to keep you going throughout the day. This Chromebook's battery will keep you active for up to 15 hours.Learning Early, SafelySuitable for younger learners, this Chromebook is certified to meet two leading toy safety standards: the Astm F963-16 and Ul/Iec 60950-1.