Earlier in 2015 I bought this SHARKK 5-Button 2.4G Wireless Vertical Optical Mouse, at that time the price was around INR 1650. Also I got a discount due to some promotion. So The effective price was around INR 1000.
The mouse was difficult to use initially due to the shape of it. But once you are used to it it is ok.
The Mouse is a Five button one. It have Left and right click buttons, Forward and back buttons, DPI change button and scroll wheel.
The back and forward buttons are not that easy to use. The Mouse buttons can be configured using Free software like X-Mouse Button Control etc.
If you keep the mouse idle, it will go in to the sleep mode to save the battery, you will have to click the mouse to wake it up. SHARKK 5-Button 2.4G Wireless Vertical Optical Mouse uses 2 AAA batteries and the battery life was good for the previous one I used.
It is for Right handers
DPI settings (800/1200/1600) can be adjustable
Product dimensions: 115 x 58 x 87 mm
Product weight: 4 oz
Operating distance: 10m
USB connection, plug and play
Compatible with all versions of Windows OS, Mac OS X, Linux.
So if you have pain on your wrist while using a Mouse I prefer you to try this one. It will be not easy to use the mouse at first but once you are used to it, it will be a good one as it will reduce the wrist pain.
After 14 months the scroll button got damaged and I have ordered a new one, but this time the price was different, INR 2,741.00, and it was imported from USA too. The same product is available under different brand names such as ANKER etc.
If you have any doubts regarding this mouse please leave a comment.