Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security. Y ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR When performance is your priority, rely on proven, trusted technology. With the cylindrical lithium-ion battery cell your laptop gets stable power that’s great for high-performance devices. Lithium-Ion (Li-Ion) Numeric keyboard Y Hard Drive HDD HDMI 1 DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y HP Pavilion dv7-2173ca, Intel® Core™2 Quad, 2 GHz, 43,9 cm (17.3"), 1600 x 900 Pixeles, 4 GB, 500 GB HP Pavilion dv7-2173ca. Tipo de producto: Computadora portátil, Factor de forma: Concha. Familia de procesador: Intel® Core™2 Quad, Modelo del procesador: Q9000, Frecuencia del procesador: 2 GHz. Diagonal de la pantalla: 43,9 cm (17.3"), Tipo HD: HD+, Resolución de la pantalla: 1600 x 900 Pixeles. Memoria interna: 4 GB, Tipo de memoria interna: DDR2-SDRAM. Capacidad total de almacenaje: 500 GB, Unidad de almacenamiento: Unidad de disco duro, Tipo de unidad óptica: DVD Super Multi DL. Sistema operativo instalado: Windows Vista Home Premium. Color del producto: Negro