Switch Between 2 Devices: Have USB-C & USB-A dual receivers, you can easily switch between laptop, tablet, phone or desktop. Ergonomic Design with Comfort Grip: The shape of this mouse is ergonomically designed to fit the natural curve of the human hand, ensuring long-lasting comfort and efficiency. The rubber side grips provide additional support for the thumb and bring an excellent working experience. 6 Buttons Design: Left key, right key, scroll, channel switching, forward, backward. Compatible with Multiple Devices: Supports most computers, notebooks, mobile phones, and devices with USB-A or USB-C interfaces. NOTICE - Please be aware that the AA batteries are not included. The USB receivers is stored at the back of the mouse.