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 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 HP ProBook 4535s, AMD A4, 1,9 GHz, 39,6 cm (15.6"), 1366 x 768 pixels, 2 GB, 320 GB HP ProBook 4535s. Processor family: AMD A4, Processor model: A4-3305M, Processor frequency: 1,9 GHz. Display diagonal: 39,6 cm (15.6"), Display resolution: 1366 x 768 pixels. Internal memory: 2 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 320 GB, Storage media: HDD, Optical drive type: DVD Super Multi DL. On-board graphics card model: AMD Radeon HD 6480G. Operating system installed: Windows 7 Home Premium. Weight: 2,33 kg https://www.techradar.com/reviews/pc-mac/laptops-portable-pcs/laptops-and-netbooks/hp-probook-4535s-1072500/review There's no shortage of quality in the laptop market at present, which is a great thing for those looking to buy a new machine. However, the explosion of Ultrabooks has served to expose the swathes of poor quality, bulky and slow laptops that have plagued ... Matte screen, Decent battery life, Large HDD Poor performance, Bland design, Crapware installed by default, Lack of features, Slow to boot