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 Intel® Pentium® Intel Pentium HDMI 1 HP ProBook 4520s, Intel® Pentium®, 2.13 GHz, 39.6 cm (15.6"), 1366 x 768 pixels, 3 GB, 320 GB HP ProBook 4520s. Processor family: Intel® Pentium®, Processor: P6200, Processor frequency: 2.13 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: DVD Super Multi DL. On-board graphics card model: Intel® HD Graphics, Discrete graphics card model: Intel® HD Graphics. Operating system installed: Windows 7 Home Premium. Weight: 2.39 kg http://www.pcworld.in/product/review/hp-probook-4520s-laptop 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 upsetting your budget overmuch.... Light, wellbuilt, Stylish looks, Excellent keyboard, touchpad, Fingerprint reader, face detection, Very good feature set, Very good performance Palmrest's leftside placement The HP ProBook 4520s is definitely better than the ProBook 4410s and sells for Rs. 45,200. For its business laptop billing, it is a breath of fresh air in terms of looks and design. The ProBook 4520s comes with a very useful set of proprietary softwar...