Come and see our amazing products. This Mouse is Scientific ergonomic design and encourages healthy neutral "handshake" wrist and arm positions for smoother movement and less overall strain. It's powered with 2.4GHz digital wireless transmission with an operation distance of up to 10m. Fit for Notebook, PC, Laptop, Computer, and other devices. The price includes the shipping cost to ca, QTY for 10K pcs and over by ocean. Pls confirm with us about the packing info, stock color and exact production time before placing your order.