______ es un dispositivo en el que los clientes pueden explorar, comprar, descargar y leer libros electrónicos, periódicos y revistas.

Amazon Kindle is correct because it is Amazon's dedicated e-reader device, designed specifically for browsing, purchasing, downloading, and reading e-books, newspapers, and magazines. Fire TV is incorrect because it is a streaming media player for television content, not for reading. Alexa is incorrect because it is Amazon's virtual assistant AI, which can be found on various devices but is not a reading device itself.