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 Legacy Intel® Core™ Processor Intel Core i3-xxx HDMI 1 HP ProBook 4520s, Intel® Core™ i3, 2.53 GHz, 39.6 cm (15.6"), 1366 x 768 pixels, 3 GB, 320 GB HP ProBook 4520s. Processor family: Intel® Core™ i3, Processor model: i3-380M, Processor frequency: 2.53 GHz. Display diagonal: 39.6 cm (15.6"), Display resolution: 1366 x 768 pixels. Internal memory: 3 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 320 GB, Optical drive type: DVD Super Multi DL. On-board graphics card model: Intel® HD Graphics, Discrete graphics card model: Intel® HD Graphics. Operating system installed: Windows 7 Professional. Weight: 2.39 kg Product Code: WD846EA The HP ProBook 4520s is a stylish 15-inch business laptop. It is based on the Intel Core i3-350M processor, offers very good performance, and marries one-of-a-kind looks and design with adequate business features without upsetti... As a business laptop the HP ProBook 4520s is a breath of fresh air in terms of looks and design. The ProBook 4520s comes with a very useful set of proprietary software, especially for data security - an essential requirement for a self-respecting busi...