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) DisplayPort 1 Fingerprint Y Solid state drive SSD DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y HP ProBook 645 G1, AMD A8, 2.1 GHz, 35.6 cm (14"), 1366 x 768 pixels, 4 GB, 128 GB HP ProBook 645 G1. Product type: Laptop, Form factor: Clamshell. Processor family: AMD A8, Processor model: A8-5550M, Processor frequency: 2.1 GHz. Display diagonal: 35.6 cm (14"), HD type: HD, Display resolution: 1366 x 768 pixels. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 128 GB, Storage media: SSD. On-board graphics card model: AMD Radeon HD 8550G. Operating system installed: Windows 7 Professional. Product colour: Black, Silver