The keyboard is built with a soft-touch palm rest and quiet keys to offer comfort and a peaceful working environment. It's designed with media playback controls, one-touch zoom and customisable keys to speed up your work, so you'll easily hit your deadlines. Featuring Advanced Encryption Standard (AES) technology to protect your information by encrypting every keystroke. The mouse is constructed with Microsoft's Blue Track Technology to offer precision when running on any surface, from wood to marble. System requirements: Windows 10/8/7 USB port 4x AA alkaline batteries (included)