The HP Multi-Device Dual-Mode Mouse and Keyboard Combo with Palm Rest 585C (HP part BD5F3AA) is a full-size wireless keyboard, a contoured wireless mouse and a magnetic palm rest, designed for comfortable all-day office work. Both devices connect either through the supplied USB receiver (2.4 GHz) or over Bluetooth, and they are multi-device, so one set can switch between a desktop PC, laptop, tablet or phone. The full-size keyboard includes a numeric keypad and quiet keys, and programmable shortcut keys can be customised with HP Accessory Center software on Windows; HP notes a Copilot key where available. The magnetic palm rest measures about 429 x 82 x 12 mm and snaps to the front of the keyboard to support the wrists. The mouse has contoured grips and a 1,200 DPI sensor. The keyboard runs on two AAA batteries and the mouse on one AA battery. It works with Windows, macOS, ChromeOS, Android and iOS, needing a USB-A port for the receiver or Bluetooth. The combo is black, uses 65% post-consumer recycled plastic and ships in FSC-certified packaging. It suits offices, home workers and hot-desking environments.