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 Does not contain "conflict minerals": tantalum, tin, tungsten, and gold. 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) The Celeron® processors support a wide range of multimedia capabilities to entertain and entice all throughout your day. Create, edit, and manage important files on the go. Easily organize contact lists and messages. Experience improved features and functionality to help you be more productive at work. The Celeron® processor levels up the fun with improved graphics, smooth action, and healthy battery life to support enhanced casual gameplay. Intel Celeron Numeric keyboard Y Hard Drive HDD HDMI 1 DIRECTIVE (EU) 2022/2380 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 November 2022 (Part III) y HP ProBook 4540s, Intel® Celeron®, 1,8 GHz, 39,6 cm (15.6"), 1366 x 768 εικονοστοιχεία, 4 GB, 500 GB HP ProBook 4540s. Τύπος προϊόντος: Laptop, Τύπος μορφής: Clamshell. Τύπος επεξεργαστή: Intel® Celeron®, Προδιαγραφές επεξεργαστή: 1000M, Συχνότητα επεξεργαστή: 1,8 GHz. Μέγεθος οθόνης: 39,6 cm (15.6"), Τύπος HD: HD, Βήμα εικονοστοιχείων: 1366 x 768 εικονοστοιχεία. Εσωτερική μνήμη: 4 GB, Τύπος μνήμης: DDR3-SDRAM. Εσωτερική μονάδα σκληρού δίσκου: 500 GB, Μέσα αποθήκευσης: HDD, Οπτικές μονάδες: DVD Super Multi DL. Εγκατεστημένο λειτουργικό σύστημα: Windows 8. Χρώμα προϊόντος: Άργυρος