Bewinner Wireless Vertical Mouse - 2.4 GHz Wireless

Specification: Item Type: Wireless Vertical Mouse Material: ABS Number of Keys: 6 Keys DPI: 800, 1200, 2400, 3200 Battery: 400mAh Lithium Battery (Included) Mouse Size: Approx. 140 x 75 x 80mm / 5.5 x 3.0 x 3.1in Receiver: Approx. 6 x 19 x 14.6mm / 0.24 x 0.75 x 0.6in How to Use: After inserting the wireless receiver into the USB port of PC, laptop and other devices, open the switch at the bottom of the mouse, the mouse is automatically connected to use. Package List: 1 xWireless Vertical Mouse (Ship with Inbuilt Battery) 1 x Wireless Receiver 1 x Charging Cable