[NOTE: The USB receiver at the bottom of mouse.]Design for left-handed.The unique, upright and ergonomically superior design of the Vertical Wireless Mouse reduces harmful arm and wrist tension by allowing your hand to operate the mouse while remaining in its natural position.

Advanced "Page Back" and "Page Forward" functionality buttons provide convenience when web page browsing. 800 /1200/1600 DPI Levels -- Easily adjusts the sensitivity of the mouse,allows fast response, smooth tracking and precise movement. Quiet click with less noise, no disturbing others besides you. A superior choice for internet surfers, gamers and people working at the computer.

Built-in rechargeable battery. You no longer need to buy batteries, very convenient !!An independent On/Off switch button on the bottom which helps save energy effectively. EASY TO USE.

2.4 GHz wireless technology which provides a powerful, reliable connection up to 10m. PLUG & PLAY, without installing any additional software. Enjoy the fast data transmission at the convenience of the wireless technology!

Widely compatible with Windows 2000 / XP / Vista / 7 / 8 / 10 / Linux. Once you get used to the ergonomic mouse, you will love it so much !