Features: Brand new and high quality One-to-many connection: One tiny receiver for up to six Unifying devices. Plug it and leave it, then connect additional mice and keyboards to one computer. Download Unifying software to quickly add all of your devices to one receiver. It's convenient, clutter free, advance 2.4 GHz wireless technology. For easy mobility and exceptional experience, keep a mouse-and-keyboard at work, at home and in your computer bag. They are always ready to use from only one USB port. Compatible for Unifying Mouse or Keyboard:For Anywhere Mouse MX: Mx master, M950T, M950, Mx Anywhere2, M905, M705, M720, M525, M515, M510, M505, T620, T400, M345, M325, M310, M310T, M320, etcFor keyboard: K400r, K750, K800, K520, K710, K780, K230, K340, K350, N305, K340 .EtcFor Wireless Solar Keyboard K800. Specifications: Mode: 6 Channel Device Type: Receiver for Unifying Material: ABS, metal Item Color: As shown Package Includes: 1PC x Unifying USB Adapter note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!