Ergonomic Vertical Mouse : 1 Mouse for Multi-purpose This mouse connects to 3 devices via Bluetooth 5.0 + Bluetooth 3.0 + 2.4G USB receiver simultaneously, the switch button is just near your thumb for switching between3 devices easily, with conspicuous lights on the top of the mouse to let you know which connection mode you are using Vertical Ergonomic Design Mouse : Lets try this vertical one if you tired of using the traditional grip, the shape of this Bluetooth Mouse keeps your hand in the right ergonomic position, end of wrist & shoulder pain. User Friendly Vertical Mouse : Page forward and back buttons enable you to operate faster and more efficiently, the mode switch button on the buttom let you can switch from your computers easily by a simple click Rechargeable Ergonomical Mouse : With built-in rechargeable battery you can use the mouse by plugging the USB receiver into the device even when it's in charging status. What's in the box 1 x Mouse