New still in the plastic and box

Product Features

Keyboard
1. 15 Programmable keys 
2. Backlight brightness control (F8)
3. Low battery LED indicator 
4. Bluetooth 5.1 modes
5. RF 2.4GHz mode (USB-A receiver)
6. Mode switch button
7. Mic mute/unmute
8. Chat
9. Screen share
10. Video on/off

Mouse
1. Scroll wheel
2. Scroll speed toggle button
3. Bluetooth 5.1 modes
4. RF 2.4GHz mode (USB-A receiver)
5. Mode switch button
6. Charging connector
7. Side scroll wheel
8. Side scroll button

Compatibility
2.4GHz
Windows 7, Windows 8.1,10 and 11 or later; Mac; Linux (Red Hat Enterprise 8.0 /Ubuntu 18.4); Chrome; Android OS.

Bluetooth
Windows 8.1,10 and 11 or later; Mac; Linux (Red Hat Enterprise 8.0 /Ubuntu 18.4); Chrome; Android OS.

Dell Peripheral Manager 
Compatible with Windows 10, 11 or later (version 1.6.4 or later and version 1.7.2 or later required for touch controls for Zoom and Microsoft Teams respectively).

Warranty

This product comes with a 3-year Advanced Exchange Service so that if a replacement becomes necessary, it will be shipped to you the next business day during your 3-year Limited Hardware Warranty.

What's in the box?

Dell Premier Collaboration Keyboard and Mouse - KM900
USB-C Charging Cable (USB-C to USB-C)
Dell Secure Link USB Receiver
Documentation