microware 5D Ergonomic Vertical Optical Mouse, Rechargeable Wireless Vertical Mouse 2.4G Optical Mice with USB Receiver, 6 Buttons 800/1200/1600 DPI Levels, for Notebook, PC, Laptop, Computer, Desktop Wireless Optical Gaming Mouse with Bluetooth  (2.4GHz Wireless, Black)

Microware Ergonomic Vertical Mouse Rechargeable: Comfortable and classy Tired of using the traditional grip? The ergonomically-designed thumb rests and grips fit the contour of your palm for maximum comfort, accommodates your hand in a completely natural position, without twisting your wrist around like a standard mouse. Rechargeable vertical mouse Built-in 350mah lithium rechargeable battery, batteries no longer need to be replaced frequently. Recharge quick-connect design allows you to switch from wireless to a charging cable connection so you never run out of power. Easy-access use 6 Buttons give you improved control over your computer's systems. All buttons are activated with a reasonable level of force.