Product Review

Features:
* 100% brand new and high quality.
* No finger contortions are needed to operate the easy-to-reach buttons.
* High precision means you'll enjoy smoother tracking on just about most surface.
* The vertical "handshake" position encourages a neutral wrist and arm alignment for greater comfort and better health.
* The wireless vertical ergonomic optical mouse is designed to reduce forearm twisting and the resulting repetitive stress and pain.
* Ergonomics vertical wireless mouse, comfortable touch, working on many different surfaces and ideal usage for home, office or game.

Product Details:
DPI: 1600
Size: 5.31" * 3.74" * 3.42"
Net weight: 5.29oz
Battery: 2 x AAA Batteries (Not included)
Superior Ergonomic Design: make your hand comfort
Button: 5 buttons in default / 1 scroll wheel (middle button)
Compatibility: Windows 8 / 7 / Vista / XP / 2000, Linux
Backward/Forward button are unavailable in Mac Os

Package includes:
1 * Wireless Vertical Ergonomic Optical Mouse
1* Detachable Palm Rest
1* USB Receiver

NOTE:
Due to the innovative design of this ergonomic mouse, you may initially find it difficult to use. Please continue use over several days to grow accustomed to and enjoy the full comfort of the design.

CHUYI Quality:
All CHUYI products are constructed to the high standards and rigorously tested at every stage of production, so you can be confident in the outstanding quality, performance and reliability.
If you have any question or problem, please contact with us, we will try our best to help you