Calculate your way to the top of the class. Ideal for advanced high-school math and science classes.

As you take in the pleasant view outside your window, it's hard to fathom that it could all be swept away in the blink of an eye. For Artyom, however, there's no need to imagine ~ after the devastation of an apocalyptic event, the only hope for salvation lies in the darkness deep beneath Moscow in the underground. The Metro franchise introduced you to Artyom's world as you plunged into the survival horror genre with Metro 2033, then kept you riveted in the action-packed follow-up, Metro: Last Night. Now, get ready to return to the terror and brutality that defines this hellish world on a first-person shooter thrill ride that tests your will to survive in every way.Metro Redux includes Metro 2033, the terrifying first chapter of Artyom's struggle for survival in the ruins of his city, as well as Metro: Last Night, the heart-pounding continuation. The nightmare begins in Metro 2033 as Artyom, a survivor of an apocalyptic event 20 years in the past, is forced to leave the relative safety of Moscow's underground and emerge into a world populated by murderous mutants and full of toxicity and danger around every corner. As if the world outside wasn't horrific enough, Metro: Last Light brings the terror underground as Artyom struggles to save humanity as it perches on the edge of civil war and ultimate destruction. Struggle for survival armed only with homemade weapons and your trusty gasmask as you fight your way through two action-saturated campaigns with all-new melee animations, plus hours of thrilling DLC. Immerse yourself in the bleak world of post-apocalyptic Moscow with stunning imagery rendered in silky smooth 60 fps, as well as new lighting, physics, dynamic weather effects and full-body player animations. Take charge with improved AI, controls and weapon handling and easily check your watch and ammo supplies on the fly. Prepare yourself for slow-burning intensity in Survival mode, or duke it out in brutal combat in Spartan mode. Rise to the ultimate challenge as you wage deadlier battles with fewer resources and without the benefit of HUD or UI in Ranger mode. The odds are bad and the stakes are high ~ do you have what it takes to save what's left of the world?

Set up your GoPro camera for hands-free use on the go with this GoPro QuickClip and head strap kit. The head strap is fully adjustable to easily fit various sizes and supports several head-mounting options, including strapping to an helmet. This GoPro QuickClip and head strap kit allows low-profile installation and lets you attach other small accessories.

Pristine images and easy wireless content are yours with this Sony 55-inch 4K LED TV. Ultra-high-definition imagery is assured thanks to the 4K resolutions, and you can find content for this TV using the smart media player and integrated Wi-Fi. Four HDMI inputs ensure you can connect this Sony 55-inch 4K LED TV to a variety of consoles and devices.