Ключевые слова: advertisement, background, balance, buttons, clean, communication, concept, contemporary, design, device, digital, display, duo, electronics, elegant, future, futuristic, gadget, gray, handheld, innovation, minimalist, mobile, modern, pair, portable, presentation, product, screen, showcase, sidebyside, simplicity, sleek, smartphone, sophistication, stylish, symmetry, tech, technology, white, wireless,