This is a high-end model of Logitech's mobile mouse. It's a new, unopened product. Although it's the Bluetooth Edition, it can also connect via a USB receiver (Unifying). The Unifying receiver is sold separately, but I have a few unused ones, so I can include one for an additional 500 yen. (PC-specific software is required for pairing with Unifying) It can connect to three devices simultaneously and switch between them with a button. Bluetooth-connected rechargeable mouse Equipped with Easy-Switch function Up to 4000 DPI Can be used for up to 70 days - Model Name: MX ANYWHERE 2S - Connection Method: Bluetooth - Supported OS: Windows, macOS - Battery Type: High-efficiency rechargeable battery - Usage Time: Up to 70 days - DPI: Up to 4000 DPI - Color: Black MX1600CR2 Please contact the manufacturer for initial defects as this is an unopened product. Thank you for viewing. Power supply...Rechargeable Connection type...Wireless (Bluetooth) Other...Multi-pairing, tilt wheel (horizontal scrolling)