. Stimulate student learning with the Travel Mate B3's high-performing ultra-durable design. Featuring a long battery life mechanically anchored keys & blazing-fast connection speeds empower students to get even more out of their classes Key Product Info. Anchored key design Battery level indicator Product Features Anchored key design Keyboard keys are kept safe from bored & restless children with mechanically anchored keys. These keys are both difficult to remove & easy to replace making them ideal for classroom situations where computers are shared among students. Battery level indicator Take control of the classroom & ensure students never run out of battery during class with a front-cover indicator allowing teachers to quickly & easily tell when a laptop is running out of charge.