Logitech K810 bluetooth keyboard

I’m selling a new, ultra thin, aluminum Logitech K810 bluetooth keyboard. It was a gift, not needed. It is still in its unopened box. This is high end keyboard that has a number of features: (1) Hand proximity and environmental light condition sensors that automatically controls the key backlightighting to conserve power, (2) supports for multiple different devies (switch between the various stored configurations), and (3) enhanced incurve and perfectstroke typing performance. It works with computers, phones and tablets with Windows OS 7/10/RT, Apple OS, and Android. The battery stores a charge for up to a year when not in use and up to 10 days of typing with backlighting. Contact with price offer to purchase. Only messages with a reasonable price offer will receive a reply. Thank you for reading before contacting.