MX MASTER 3S, an ergonomically designed wireless mouse. - Model Name: MX MASTER 3S - Brand: Logitech - Included Items: USB receiver, cable - Color: Gray - Features: Wireless, ergonomic design Purchased on Mercari the other day. It seems the seller bought it in China. There were no issues with its operation. I am selling it because I no longer need it. Please note that this is a used item, so no claims or returns are accepted. Thank you for looking.