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 <b>當您最需要時更高的效能</b> 當運作低於規格限制時，Intel®渦輪加速技術2.0可藉由提高操作頻率來加快處理器及圖形晶片效能的速度。最大頻率是依據工作負載、硬體、軟體及整體系統組態而改變。 2.0 Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. Y 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) 4th Generation Intel® Core™ processors are based on Intel® microarchitecture formerly known as Haswell, manufactured on 22 nm process technology with 3D tri-gate transistors. This platform provides excellent CPU, graphics, media performance, flexibility, and enhanced security over the 3rd generation Intel® Core™ processors, making it ideal for a broad range of intelligent systems. Intel Core i5-4xxx Hard Drive HDD HDMI 1 HP Essential 650, Intel® Core™ i5, 1.7 GHz, 39.6 cm (15.6"), 1366 x 768 像素, 4 GB, 500 GB HP Essential 650. 產品類型: 筆記型電腦, 外型: 翻蓋式. 處理器系列: Intel® Core™ i5, 處理器類型: i5-4210U, 處理器頻率: 1.7 GHz. 顯示器尺寸(對角長): 39.6 cm (15.6"), 顯示器解析度: 1366 x 768 像素. 內部記憶體: 4 GB, 內部記憶體類型: DDR3-SDRAM. 總儲存空間: 500 GB, 媒體儲存功能: HDD 硬式磁碟機, 光碟機: DVD Super Multi DL 雙層燒錄. 行動通訊系統: 3G. 提供作業系統: Windows 7 Professional. 產品色彩: 銀