Brand new, unused. Although it's the Bluetooth Edition, it can also connect via Unifying. The Unifying receiver is sold separately. I have a few extras, so I can include one for an additional 500 yen. It can connect to three devices simultaneously and switch between them with a button. A rechargeable Bluetooth mouse with Easy-Switch functionality. - Model Name: MX Anywhere 2S - Connection Type: Bluetooth - Color: Black - Compatibility: Windows, macOS - Battery Type: Rechargeable - Features: Easy-Switch function Thank you for looking.