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 4320s + WT266EA, Intel® Core™ i3, 2.4 GHz, 33.8 cm (13.3"), 1366 x 768 pixels, 3 GB, 320 GB HP ProBook 4320s + WT266EA. Processor family: Intel® Core™ i3, Processor model: i3-370M, Processor frequency: 2.4 GHz. Display diagonal: 33.8 cm (13.3"), 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: AMD Mobility Radeon HD 530v. Operating system installed: Windows 7 Professional. Weight: 2.02 kg